Finding the Fourth Proportional to 522,721,331.20, 784,081,996.80 and 497,212,163.20
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Solution
The fourth proportional to 522,721,331.20, 784,081,996.80 and 497,212,163.20 is: 745,818,244.80
Step by Step Solution
- Step 1: Write the proportion equation
522,721,331.20 : 784,081,996.80 = 497,212,163.20 : x - Step 2: Convert to fraction form
522,721,331.20/784,081,996.80 = 497,212,163.20/x - Step 3: Cross multiply
522,721,331.20x = 784,081,996.80 × 497,212,163.20 - Step 4: Simplify right side
522,721,331.20x = 389,855,105,755,103,424 - Step 5: Solve for x
x = 389,855,105,755,103,424/522,721,331.20 - Step 6: Final answer
x = 745,818,244.80
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Double scale
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Similar ratio
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1.5x scale
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.