A country's population in 1994 was 140 million. In 1998 it was 146 million. Estimate the popluation in 2011 using the exponential growth formula. Round your answer to the nearest million?

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wolf1728 · Answer

Najia2000 - are you coming back?

wolf1728 · Answer

rate = 10^(log[end amt/bgn amt]/time) -1 rate = 10^(log[146,000,000/140,000,000]/4) -1 rate = 10^(0.004556205) -1 rate = 1.0105462738 -1 rate = .0105462738 Ending Amount (2011) = Beginning Amount * (1+ rate)^time Ending Amount = 140,000,000 * (1.0105462738)^17 Ending Amount = 140,000,000 * 1.1952410089 Ending Amount = 167,333,741 http://www.1728.org/expgrwth.htm

anonymous · Answer

oh wow, Thank you!!!

wolf1728 · Answer

Najia2000 - I'm glad you came back!