Finding the Fourth Proportional to 7,381,609.70, 11,072,414.55 and 3,980,387.30
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Solution
The fourth proportional to 7,381,609.70, 11,072,414.55 and 3,980,387.30 is: 5,970,580.95
Step by Step Solution
- Step 1: Write the proportion equation
7,381,609.70 : 11,072,414.55 = 3,980,387.30 : x - Step 2: Convert to fraction form
7,381,609.70/11,072,414.55 = 3,980,387.30/x - Step 3: Cross multiply
7,381,609.70x = 11,072,414.55 × 3,980,387.30 - Step 4: Simplify right side
7,381,609.70x = 44,072,498,255,155.22 - Step 5: Solve for x
x = 44,072,498,255,155.22/7,381,609.70 - Step 6: Final answer
x = 5,970,580.95
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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.