Finding the Fourth Proportional to 577,471,637.70, 866,207,456.55 and 347,889,125.70
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Solution
The fourth proportional to 577,471,637.70, 866,207,456.55 and 347,889,125.70 is: 521,833,688.55
Step by Step Solution
- Step 1: Write the proportion equation
577,471,637.70 : 866,207,456.55 = 347,889,125.70 : x - Step 2: Convert to fraction form
577,471,637.70/866,207,456.55 = 347,889,125.70/x - Step 3: Cross multiply
577,471,637.70x = 866,207,456.55 × 347,889,125.70 - Step 4: Simplify right side
577,471,637.70x = 301,344,154,734,000,192 - Step 5: Solve for x
x = 301,344,154,734,000,192/577,471,637.70 - Step 6: Final answer
x = 521,833,688.55
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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.