Finding the Fourth Proportional to 527,626,039.86, 728,121,252.87 and 292,674,267.90
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Solution
The fourth proportional to 527,626,039.86, 728,121,252.87 and 292,674,267.90 is: 403,889,001.92
Step by Step Solution
- Step 1: Write the proportion equation
527,626,039.86 : 728,121,252.87 = 292,674,267.90 : x - Step 2: Convert to fraction form
527,626,039.86/728,121,252.87 = 292,674,267.90/x - Step 3: Cross multiply
527,626,039.86x = 728,121,252.87 × 292,674,267.90 - Step 4: Simplify right side
527,626,039.86x = 213,102,354,626,158,016 - Step 5: Solve for x
x = 213,102,354,626,158,016/527,626,039.86 - Step 6: Final answer
x = 403,889,001.92
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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.