Finding the Fourth Proportional to 132,642,889.97, 198,966,397.15 and 39,279,305.92
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Solution
The fourth proportional to 132,642,889.97, 198,966,397.15 and 39,279,305.92 is: 58,919,569.55
Step by Step Solution
- Step 1: Write the proportion equation
132,642,889.97 : 198,966,397.15 = 39,279,305.92 : x - Step 2: Convert to fraction form
132,642,889.97/198,966,397.15 = 39,279,305.92/x - Step 3: Cross multiply
132,642,889.97x = 198,966,397.15 × 39,279,305.92 - Step 4: Simplify right side
132,642,889.97x = 7,815,261,981,455,067 - Step 5: Solve for x
x = 7,815,261,981,455,067/132,642,889.97 - Step 6: Final answer
x = 58,919,569.55
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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.