Finding the Fourth Proportional to 5,472,213.20, 8,208,319.80 and 2,486,229.20
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Solution
The fourth proportional to 5,472,213.20, 8,208,319.80 and 2,486,229.20 is: 3,729,343.80
Step by Step Solution
- Step 1: Write the proportion equation
5,472,213.20 : 8,208,319.80 = 2,486,229.20 : x - Step 2: Convert to fraction form
5,472,213.20/8,208,319.80 = 2,486,229.20/x - Step 3: Cross multiply
5,472,213.20x = 8,208,319.80 × 2,486,229.20 - Step 4: Simplify right side
5,472,213.20x = 20,407,764,369,698.16 - Step 5: Solve for x
x = 20,407,764,369,698.16/5,472,213.20 - Step 6: Final answer
x = 3,729,343.80
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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.