Finding the Fourth Proportional to 27,654,013.92, 38,156,841.68 and 15,891,010.24
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Solution
The fourth proportional to 27,654,013.92, 38,156,841.68 and 15,891,010.24 is: 21,926,320.12
Step by Step Solution
- Step 1: Write the proportion equation
27,654,013.92 : 38,156,841.68 = 15,891,010.24 : x - Step 2: Convert to fraction form
27,654,013.92/38,156,841.68 = 15,891,010.24/x - Step 3: Cross multiply
27,654,013.92x = 38,156,841.68 × 15,891,010.24 - Step 4: Simplify right side
27,654,013.92x = 606,350,761,862,938.75 - Step 5: Solve for x
x = 606,350,761,862,938.75/27,654,013.92 - Step 6: Final answer
x = 21,926,320.12
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1.5x scale
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.