Finding the Fourth Proportional to 91,331,086.68, 137,016,779.58 and 26,639,953.92
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Solution
The fourth proportional to 91,331,086.68, 137,016,779.58 and 26,639,953.92 is: 39,965,808.21
Step by Step Solution
- Step 1: Write the proportion equation
91,331,086.68 : 137,016,779.58 = 26,639,953.92 : x - Step 2: Convert to fraction form
91,331,086.68/137,016,779.58 = 26,639,953.92/x - Step 3: Cross multiply
91,331,086.68x = 137,016,779.58 × 26,639,953.92 - Step 4: Simplify right side
91,331,086.68x = 3,650,120,694,277,997.50 - Step 5: Solve for x
x = 3,650,120,694,277,997.50/91,331,086.68 - Step 6: Final answer
x = 39,965,808.21
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.