Finding the Fourth Proportional to 1,031,626,231.15, 1,423,638,135.12 and 561,726,427
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Solution
The fourth proportional to 1,031,626,231.15, 1,423,638,135.12 and 561,726,427 is: 775,179,167.45
Step by Step Solution
- Step 1: Write the proportion equation
1,031,626,231.15 : 1,423,638,135.12 = 561,726,427 : x - Step 2: Convert to fraction form
1,031,626,231.15/1,423,638,135.12 = 561,726,427/x - Step 3: Cross multiply
1,031,626,231.15x = 1,423,638,135.12 × 561,726,427 - Step 4: Simplify right side
1,031,626,231.15x = 799,695,162,981,900,800 - Step 5: Solve for x
x = 799,695,162,981,900,800/1,031,626,231.15 - Step 6: Final answer
x = 775,179,167.45
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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.