Home / 80,109,005.10-120,163,507.65-74,734,233.90

Finding the Fourth Proportional to 80,109,005.10, 120,163,507.65 and 74,734,233.90

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Solution

The fourth proportional to 80,109,005.10, 120,163,507.65 and 74,734,233.90 is: 112,101,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,005.10 : 120,163,507.65 = 74,734,233.90 : x
  2. Step 2: Convert to fraction form
    80,109,005.10/120,163,507.65 = 74,734,233.90/x
  3. Step 3: Cross multiply
    80,109,005.10x = 120,163,507.65 × 74,734,233.90
  4. Step 4: Simplify right side
    80,109,005.10x = 8,980,327,686,959,540
  5. Step 5: Solve for x
    x = 8,980,327,686,959,540/80,109,005.10
  6. Step 6: Final answer
    x = 112,101,350.85

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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.