Finding the Fourth Proportional to 64,862,511.92, 89,512,022.68 and 39,744,184.98
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Solution
The fourth proportional to 64,862,511.92, 89,512,022.68 and 39,744,184.98 is: 54,848,051.39
Step by Step Solution
- Step 1: Write the proportion equation
64,862,511.92 : 89,512,022.68 = 39,744,184.98 : x - Step 2: Convert to fraction form
64,862,511.92/89,512,022.68 = 39,744,184.98/x - Step 3: Cross multiply
64,862,511.92x = 89,512,022.68 × 39,744,184.98 - Step 4: Simplify right side
64,862,511.92x = 3,557,582,387,327,875.50 - Step 5: Solve for x
x = 3,557,582,387,327,875.50/64,862,511.92 - Step 6: Final answer
x = 54,848,051.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.