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Finding the Fourth Proportional to 89,694,458.40, 134,541,687.60 and 87,993,847.20

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Solution

The fourth proportional to 89,694,458.40, 134,541,687.60 and 87,993,847.20 is: 131,990,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,694,458.40 : 134,541,687.60 = 87,993,847.20 : x
  2. Step 2: Convert to fraction form
    89,694,458.40/134,541,687.60 = 87,993,847.20/x
  3. Step 3: Cross multiply
    89,694,458.40x = 134,541,687.60 × 87,993,847.20
  4. Step 4: Simplify right side
    89,694,458.40x = 11,838,840,700,704,534
  5. Step 5: Solve for x
    x = 11,838,840,700,704,534/89,694,458.40
  6. Step 6: Final answer
    x = 131,990,770.80

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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.