Home / 80,510,520.20-120,765,780.30-67,755,936.20

Finding the Fourth Proportional to 80,510,520.20, 120,765,780.30 and 67,755,936.20

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Solution

The fourth proportional to 80,510,520.20, 120,765,780.30 and 67,755,936.20 is: 101,633,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,510,520.20 : 120,765,780.30 = 67,755,936.20 : x
  2. Step 2: Convert to fraction form
    80,510,520.20/120,765,780.30 = 67,755,936.20/x
  3. Step 3: Cross multiply
    80,510,520.20x = 120,765,780.30 × 67,755,936.20
  4. Step 4: Simplify right side
    80,510,520.20x = 8,182,598,505,150,017
  5. Step 5: Solve for x
    x = 8,182,598,505,150,017/80,510,520.20
  6. Step 6: Final answer
    x = 101,633,904.30

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1.5x scale

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.