Finding the Fourth Proportional to 687,491,034.68, 1,031,226,346.02 and 169,921,446.68
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Solution
The fourth proportional to 687,491,034.68, 1,031,226,346.02 and 169,921,446.68 is: 254,879,647.49
Step by Step Solution
- Step 1: Write the proportion equation
687,491,034.68 : 1,031,226,346.02 = 169,921,446.68 : x - Step 2: Convert to fraction form
687,491,034.68/1,031,226,346.02 = 169,921,446.68/x - Step 3: Cross multiply
687,491,034.68x = 1,031,226,346.02 × 169,921,446.68 - Step 4: Simplify right side
687,491,034.68x = 175,227,472,570,248,672 - Step 5: Solve for x
x = 175,227,472,570,248,672/687,491,034.68 - Step 6: Final answer
x = 254,879,647.49
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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.