Finding the Fourth Proportional to 87,434,515.20, 131,235,753.60 and 44,352,364.80
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Solution
The fourth proportional to 87,434,515.20, 131,235,753.60 and 44,352,364.80 is: 66,571,147.62
Step by Step Solution
- Step 1: Write the proportion equation
87,434,515.20 : 131,235,753.60 = 44,352,364.80 : x - Step 2: Convert to fraction form
87,434,515.20/131,235,753.60 = 44,352,364.80/x - Step 3: Cross multiply
87,434,515.20x = 131,235,753.60 × 44,352,364.80 - Step 4: Simplify right side
87,434,515.20x = 5,820,616,018,470,113 - Step 5: Solve for x
x = 5,820,616,018,470,113/87,434,515.20 - Step 6: Final answer
x = 66,571,147.62
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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.