Finding the Fourth Proportional to 247,913,515.31, 372,103,259.30 and 129,823,036.97
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Solution
The fourth proportional to 247,913,515.31, 372,103,259.30 and 129,823,036.97 is: 194,856,561.68
Step by Step Solution
- Step 1: Write the proportion equation
247,913,515.31 : 372,103,259.30 = 129,823,036.97 : x - Step 2: Convert to fraction form
247,913,515.31/372,103,259.30 = 129,823,036.97/x - Step 3: Cross multiply
247,913,515.31x = 372,103,259.30 × 129,823,036.97 - Step 4: Simplify right side
247,913,515.31x = 48,307,575,188,112,280 - Step 5: Solve for x
x = 48,307,575,188,112,280/247,913,515.31 - Step 6: Final answer
x = 194,856,561.68
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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.