Home / 80,761,405.30-121,142,107.95-48,512,778.10

Finding the Fourth Proportional to 80,761,405.30, 121,142,107.95 and 48,512,778.10

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Solution

The fourth proportional to 80,761,405.30, 121,142,107.95 and 48,512,778.10 is: 72,769,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,761,405.30 : 121,142,107.95 = 48,512,778.10 : x
  2. Step 2: Convert to fraction form
    80,761,405.30/121,142,107.95 = 48,512,778.10/x
  3. Step 3: Cross multiply
    80,761,405.30x = 121,142,107.95 × 48,512,778.10
  4. Step 4: Simplify right side
    80,761,405.30x = 5,876,940,201,544,596
  5. Step 5: Solve for x
    x = 5,876,940,201,544,596/80,761,405.30
  6. Step 6: Final answer
    x = 72,769,167.15

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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.