Finding the Fourth Proportional to 157,592,414.79, 217,475,262.18 and 87,031,010.61
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Solution
The fourth proportional to 157,592,414.79, 217,475,262.18 and 87,031,010.61 is: 120,101,540.90
Step by Step Solution
- Step 1: Write the proportion equation
157,592,414.79 : 217,475,262.18 = 87,031,010.61 : x - Step 2: Convert to fraction form
157,592,414.79/217,475,262.18 = 87,031,010.61/x - Step 3: Cross multiply
157,592,414.79x = 217,475,262.18 × 87,031,010.61 - Step 4: Simplify right side
157,592,414.79x = 18,927,091,850,200,112 - Step 5: Solve for x
x = 18,927,091,850,200,112/157,592,414.79 - Step 6: Final answer
x = 120,101,540.90
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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.