Home / 42,979,900.20-64,469,850.30-25,761,211.80

Finding the Fourth Proportional to 42,979,900.20, 64,469,850.30 and 25,761,211.80

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Solution

The fourth proportional to 42,979,900.20, 64,469,850.30 and 25,761,211.80 is: 38,641,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,979,900.20 : 64,469,850.30 = 25,761,211.80 : x
  2. Step 2: Convert to fraction form
    42,979,900.20/64,469,850.30 = 25,761,211.80/x
  3. Step 3: Cross multiply
    42,979,900.20x = 64,469,850.30 × 25,761,211.80
  4. Step 4: Simplify right side
    42,979,900.20x = 1,660,821,468,292,593.50
  5. Step 5: Solve for x
    x = 1,660,821,468,292,593.50/42,979,900.20
  6. Step 6: Final answer
    x = 38,641,817.70

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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.