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Finding the Fourth Proportional to 88,071,761.80, 132,107,642.70 and 80,135,576.20

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Solution

The fourth proportional to 88,071,761.80, 132,107,642.70 and 80,135,576.20 is: 120,203,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,071,761.80 : 132,107,642.70 = 80,135,576.20 : x
  2. Step 2: Convert to fraction form
    88,071,761.80/132,107,642.70 = 80,135,576.20/x
  3. Step 3: Cross multiply
    88,071,761.80x = 132,107,642.70 × 80,135,576.20
  4. Step 4: Simplify right side
    88,071,761.80x = 10,586,522,068,188,224
  5. Step 5: Solve for x
    x = 10,586,522,068,188,224/88,071,761.80
  6. Step 6: Final answer
    x = 120,203,364.30

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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.