Finding the Fourth Proportional to 5,234,385.74, 7,221,470.90 and 3,246,601.88
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Solution
The fourth proportional to 5,234,385.74, 7,221,470.90 and 3,246,601.88 is: 4,479,081.63
Step by Step Solution
- Step 1: Write the proportion equation
5,234,385.74 : 7,221,470.90 = 3,246,601.88 : x - Step 2: Convert to fraction form
5,234,385.74/7,221,470.90 = 3,246,601.88/x - Step 3: Cross multiply
5,234,385.74x = 7,221,470.90 × 3,246,601.88 - Step 4: Simplify right side
5,234,385.74x = 23,445,241,002,125.96 - Step 5: Solve for x
x = 23,445,241,002,125.96/5,234,385.74 - Step 6: Final answer
x = 4,479,081.63
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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.