Home / 138,792,600.30-208,188,900.45-52,533,821.10

Finding the Fourth Proportional to 138,792,600.30, 208,188,900.45 and 52,533,821.10

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Solution

The fourth proportional to 138,792,600.30, 208,188,900.45 and 52,533,821.10 is: 78,800,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,792,600.30 : 208,188,900.45 = 52,533,821.10 : x
  2. Step 2: Convert to fraction form
    138,792,600.30/208,188,900.45 = 52,533,821.10/x
  3. Step 3: Cross multiply
    138,792,600.30x = 208,188,900.45 × 52,533,821.10
  4. Step 4: Simplify right side
    138,792,600.30x = 10,936,958,451,246,010
  5. Step 5: Solve for x
    x = 10,936,958,451,246,010/138,792,600.30
  6. Step 6: Final answer
    x = 78,800,731.65

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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.