Home / 91,108,849.20-136,675,083.60-45,074,248.80

Finding the Fourth Proportional to 91,108,849.20, 136,675,083.60 and 45,074,248.80

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Solution

The fourth proportional to 91,108,849.20, 136,675,083.60 and 45,074,248.80 is: 67,617,215.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,108,849.20 : 136,675,083.60 = 45,074,248.80 : x
  2. Step 2: Convert to fraction form
    91,108,849.20/136,675,083.60 = 45,074,248.80/x
  3. Step 3: Cross multiply
    91,108,849.20x = 136,675,083.60 × 45,074,248.80
  4. Step 4: Simplify right side
    91,108,849.20x = 6,160,526,722,947,199
  5. Step 5: Solve for x
    x = 6,160,526,722,947,199/91,108,849.20
  6. Step 6: Final answer
    x = 67,617,215.86

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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.