The International Monetary Fund has agreed to lend $8.3 billion in the first 10 months this year, a sum more than twice what it had been lending in previous years.

This year's loans have gone to poor countries that have been hit hard by the sharp rise in oil prices.

Between 1974-79, IMF lending arrangements averaged $4.1 billion annually.

During the period of 1947-1979, IMF lending amounted to about $64 billion, with 58 percent going to industrial countries, including the United States, Britian, France and Italy, and only 40 percent to poor countries.

Recent agreements by international lending and financial institutions based in Washington include: World Bank

A credit of 13.3 million in special drawing rights ($17.5 million) from the IDA to the government of Guinea for a livestock development project. The $21 million project is expected to increase national meat and milk production, improve nutrition, and raise the standard of living of cattle-herding families. i

An IDA credit of 8.7 million in special drawing rights (11.5 million) to the government of Madagascar for an agricultural credit project.The project will provide seasonal, medium-term and long-term credit for the maintenance, regeneration and establishment of coffee, vanilla, sugar cane, cocoa and other plantations.

Loans totaling $110 million to four banks in Yugoslavia to implement a fifth industrial credit project designed to help accelerate the economic development of the less-developed regions, provide more jobs, and strengthen the institutional capabilities of the four participating banks.

An IDA credit of 38.2 million in special drawing rights ($50 million) to assit the government of Pakistan meet demand for fertilizer and thereby increase agricultural output. The credit will be used to finance about 12.5 percent of the total cost of $400 million for fertilizer imports in fiscal 1981.

An IDA credit of 11.4 million in special drawing rights ($15 million) for the Gorgol irrigation project in the Islamic Republic of Mauritania. The $93.2 million project consists of the construction of a concrete dam, a conveyance canal, irrigation and drainage networks, service roads and buildings.

A $100 million loan to the government of the Ivory Coast for a highway sector project. The loan will finance a substantial percentage of the foreign exchange costs of the 1981-83 highway investment program and will assist the government to improve highway sector planning and coordination. The project will give special emphasis to the strengthening of pavements of existing roads and to effective utilization of road maintenance equipment and resources.

Two loans totaling $40 million and an IDA credit of 9.5 million in special drawing rights ($12.5 million) for two development projects in Cameroon -- one to assist rural development in Cameroon's northern province and the other to promote Cameroon enterprises. The rural development project will be supported by a $25 million loan and the IDA credit. The project is designed to improve agricultural production and farm incomes in the center-north area by providing improved roads and storage and marketplace facilities and effective services. The second project will provide credit for artisans and small- and medium-scale enterprises. It is expected to general additional employment for about 1,800 persons over four years. Export-Import Bank

A $44.2 million loan to support U.S. exports for the construction of a 100,000 ton per year mini-steel mill in the State of Lagos, Nigeria. The principal U.S. supplier, Pennsylvania Engineering Corp., will undertake the project as a joint venture with the government of Lagos State. The new plant will use scrap steel to produce rods and bars for the Nigeria's building and construction industry.

A $2.8 million loan to Arnica Pty. Ltd., leasing agent for a group of Australian financial institutions, for the purchase of three Swearingen Metro II twin-engine turboprop commuter aircraft and support equipment, with a total U.S. cost of $5.55 million. Swearingen Aviation Corp. is a subsidiary of Fairchild Industries.

A $27 million loan to the Electricity Supply Board, the Irish government-owned electricity company, for the purchase of a 300-egawatt boiler from Foster Wheeler Energy Corp. for $31.8 million. The boiler will be installed in the Shannon Estuary Generating Plant.

Eximbank has approved an increase of $4.3 million to a $2.55 million loan approved in June to the Corporacion Andina de Fomento of Caracas, Venezuela, the Andean Pact development agency. The loan will be used to assist in financing $16.1 million in U.S. goods and services for the 20,000 barrel-a-day expansion of an oil refinery in Cartagena, Colombia.

A $3.12 million loan guarantee to Nacional Financiera, S.A., the principal Mexican government institution financing Mexican development, to finance the purchase of a $10.4 million Lockheed Model Hercules L100-30. The plane will be purchased by Cia. Mexicana Leasing, International, Cayman Islands, for lease to Petroleos Mexicanos, the Mexican national petroleum company.

A $9 million loan to Mitsui & Co. Ltd., a privately-owned Japanese trading company, for the purchase of two Boeing 737-200 jet aircraft. The planes will be leased to AeroTour, S.A. of Paris, a privately-owned charter airline. Inter-American Development Bank

A $20.3 million loan to help Ecuador build a 55.4-kilometer highway between the cities of Loja and Zamora, as well as a bridge over the Zamora river. The loan will be used by the Ministerio de Obras Publicas y Comunicaciones to replace an unsafe mountain road connecting the two provincial capitals with an all-weather route.

Two loans totaling $36 million to help finance the widening and improving of the Duarte Highway that traverses the richest agricultural and industrial region of the Dominican Republic. The loans will be used by the Secretariat of State for Public Works and Communications to convert the highway into a four-lane highway.

A $70 million loan to help provide electric power to 1.9 million low-income residents in the State of Minas Gerais, Brazil. The loan will be used by the state's electric power agency to broaden its power distribution network with special emphasis on low-income consumers.