Home / 84,251,940.20-126,377,910.30-72,914,532.20

Finding the Fourth Proportional to 84,251,940.20, 126,377,910.30 and 72,914,532.20

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Solution

The fourth proportional to 84,251,940.20, 126,377,910.30 and 72,914,532.20 is: 109,371,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,251,940.20 : 126,377,910.30 = 72,914,532.20 : x
  2. Step 2: Convert to fraction form
    84,251,940.20/126,377,910.30 = 72,914,532.20/x
  3. Step 3: Cross multiply
    84,251,940.20x = 126,377,910.30 × 72,914,532.20
  4. Step 4: Simplify right side
    84,251,940.20x = 9,214,786,209,938,062
  5. Step 5: Solve for x
    x = 9,214,786,209,938,062/84,251,940.20
  6. Step 6: Final answer
    x = 109,371,798.30

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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.