Home / 66,428,132.20-99,684,188.70-39,134,372.20

Finding the Fourth Proportional to 66,428,132.20, 99,684,188.70 and 39,134,372.20

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Solution

The fourth proportional to 66,428,132.20, 99,684,188.70 and 39,134,372.20 is: 58,726,295.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,132.20 : 99,684,188.70 = 39,134,372.20 : x
  2. Step 2: Convert to fraction form
    66,428,132.20/99,684,188.70 = 39,134,372.20/x
  3. Step 3: Cross multiply
    66,428,132.20x = 99,684,188.70 × 39,134,372.20
  4. Step 4: Simplify right side
    66,428,132.20x = 3,901,078,143,040,834.50
  5. Step 5: Solve for x
    x = 3,901,078,143,040,834.50/66,428,132.20
  6. Step 6: Final answer
    x = 58,726,295.83

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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.