Finding the Fourth Proportional to 5,447,879.13, 7,518,414.47 and 3,000,489.61
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Solution
The fourth proportional to 5,447,879.13, 7,518,414.47 and 3,000,489.61 is: 4,140,863.62
Step by Step Solution
- Step 1: Write the proportion equation
5,447,879.13 : 7,518,414.47 = 3,000,489.61 : x - Step 2: Convert to fraction form
5,447,879.13/7,518,414.47 = 3,000,489.61/x - Step 3: Cross multiply
5,447,879.13x = 7,518,414.47 × 3,000,489.61 - Step 4: Simplify right side
5,447,879.13x = 22,558,924,500,908.66 - Step 5: Solve for x
x = 22,558,924,500,908.66/5,447,879.13 - Step 6: Final answer
x = 4,140,863.62
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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.