Finding the Fourth Proportional to 313,536,648.96, 432,708,122.34 and 172,432,711.20
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Solution
The fourth proportional to 313,536,648.96, 432,708,122.34 and 172,432,711.20 is: 237,972,291.09
Step by Step Solution
- Step 1: Write the proportion equation
313,536,648.96 : 432,708,122.34 = 172,432,711.20 : x - Step 2: Convert to fraction form
313,536,648.96/432,708,122.34 = 172,432,711.20/x - Step 3: Cross multiply
313,536,648.96x = 432,708,122.34 × 172,432,711.20 - Step 4: Simplify right side
313,536,648.96x = 74,613,034,693,347,472 - Step 5: Solve for x
x = 74,613,034,693,347,472/313,536,648.96 - Step 6: Final answer
x = 237,972,291.09
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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.