Home / 80,834,010.30-121,251,015.45-74,598,435.90

Finding the Fourth Proportional to 80,834,010.30, 121,251,015.45 and 74,598,435.90

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Solution

The fourth proportional to 80,834,010.30, 121,251,015.45 and 74,598,435.90 is: 111,897,653.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,834,010.30 : 121,251,015.45 = 74,598,435.90 : x
  2. Step 2: Convert to fraction form
    80,834,010.30/121,251,015.45 = 74,598,435.90/x
  3. Step 3: Cross multiply
    80,834,010.30x = 121,251,015.45 × 74,598,435.90
  4. Step 4: Simplify right side
    80,834,010.30x = 9,045,136,103,856,736
  5. Step 5: Solve for x
    x = 9,045,136,103,856,736/80,834,010.30
  6. Step 6: Final answer
    x = 111,897,653.85

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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.