Finding the Fourth Proportional to 208,744,721.13, 288,059,823.20 and 115,931,207.69
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Solution
The fourth proportional to 208,744,721.13, 288,059,823.20 and 115,931,207.69 is: 159,980,683.62
Step by Step Solution
- Step 1: Write the proportion equation
208,744,721.13 : 288,059,823.20 = 115,931,207.69 : x - Step 2: Convert to fraction form
208,744,721.13/288,059,823.20 = 115,931,207.69/x - Step 3: Cross multiply
208,744,721.13x = 288,059,823.20 × 115,931,207.69 - Step 4: Simplify right side
208,744,721.13x = 33,395,123,189,393,408 - Step 5: Solve for x
x = 33,395,123,189,393,408/208,744,721.13 - Step 6: Final answer
x = 159,980,683.62
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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.