Finding the Fourth Proportional to 574,614,135.20, 861,921,202.80 and 345,031,623.20
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Solution
The fourth proportional to 574,614,135.20, 861,921,202.80 and 345,031,623.20 is: 517,547,434.80
Step by Step Solution
- Step 1: Write the proportion equation
574,614,135.20 : 861,921,202.80 = 345,031,623.20 : x - Step 2: Convert to fraction form
574,614,135.20/861,921,202.80 = 345,031,623.20/x - Step 3: Cross multiply
574,614,135.20x = 861,921,202.80 × 345,031,623.20 - Step 4: Simplify right side
574,614,135.20x = 297,390,071,672,580,352 - Step 5: Solve for x
x = 297,390,071,672,580,352/574,614,135.20 - Step 6: Final answer
x = 517,547,434.80
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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.