Finding the Fourth Proportional to 156,558,537.75, 216,044,863.13 and 86,948,402.67
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Solution
The fourth proportional to 156,558,537.75, 216,044,863.13 and 86,948,402.67 is: 119,985,508.45
Step by Step Solution
- Step 1: Write the proportion equation
156,558,537.75 : 216,044,863.13 = 86,948,402.67 : x - Step 2: Convert to fraction form
156,558,537.75/216,044,863.13 = 86,948,402.67/x - Step 3: Cross multiply
156,558,537.75x = 216,044,863.13 × 86,948,402.67 - Step 4: Simplify right side
156,558,537.75x = 18,784,755,754,429,648 - Step 5: Solve for x
x = 18,784,755,754,429,648/156,558,537.75 - Step 6: Final answer
x = 119,985,508.45
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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.