Home / 80,676,408.30-121,014,612.45-74,440,833.90

Finding the Fourth Proportional to 80,676,408.30, 121,014,612.45 and 74,440,833.90

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Solution

The fourth proportional to 80,676,408.30, 121,014,612.45 and 74,440,833.90 is: 111,661,250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,676,408.30 : 121,014,612.45 = 74,440,833.90 : x
  2. Step 2: Convert to fraction form
    80,676,408.30/121,014,612.45 = 74,440,833.90/x
  3. Step 3: Cross multiply
    80,676,408.30x = 121,014,612.45 × 74,440,833.90
  4. Step 4: Simplify right side
    80,676,408.30x = 9,008,428,664,863,322
  5. Step 5: Solve for x
    x = 9,008,428,664,863,322/80,676,408.30
  6. Step 6: Final answer
    x = 111,661,250.85

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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.