Finding the Fourth Proportional to 87,641,847.13, 120,949,310.20 and 48,482,948.74
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Solution
The fourth proportional to 87,641,847.13, 120,949,310.20 and 48,482,948.74 is: 66,908,439.27
Step by Step Solution
- Step 1: Write the proportion equation
87,641,847.13 : 120,949,310.20 = 48,482,948.74 : x - Step 2: Convert to fraction form
87,641,847.13/120,949,310.20 = 48,482,948.74/x - Step 3: Cross multiply
87,641,847.13x = 120,949,310.20 × 48,482,948.74 - Step 4: Simplify right side
87,641,847.13x = 5,863,979,205,960,213 - Step 5: Solve for x
x = 5,863,979,205,960,213/87,641,847.13 - Step 6: Final answer
x = 66,908,439.27
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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.