Finding the Fourth Proportional to 5,414,423.40, 8,121,635.10 and 2,221,840.80
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Solution
The fourth proportional to 5,414,423.40, 8,121,635.10 and 2,221,840.80 is: 3,332,761.20
Step by Step Solution
- Step 1: Write the proportion equation
5,414,423.40 : 8,121,635.10 = 2,221,840.80 : x - Step 2: Convert to fraction form
5,414,423.40/8,121,635.10 = 2,221,840.80/x - Step 3: Cross multiply
5,414,423.40x = 8,121,635.10 × 2,221,840.80 - Step 4: Simplify right side
5,414,423.40x = 18,044,980,227,892.08 - Step 5: Solve for x
x = 18,044,980,227,892.08/5,414,423.40 - Step 6: Final answer
x = 3,332,761.20
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1.5x scale
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.