Home / 220,752,512.80-331,128,769.20-67,378,640.20

Finding the Fourth Proportional to 220,752,512.80, 331,128,769.20 and 67,378,640.20

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Solution

The fourth proportional to 220,752,512.80, 331,128,769.20 and 67,378,640.20 is: 101,067,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,752,512.80 : 331,128,769.20 = 67,378,640.20 : x
  2. Step 2: Convert to fraction form
    220,752,512.80/331,128,769.20 = 67,378,640.20/x
  3. Step 3: Cross multiply
    220,752,512.80x = 331,128,769.20 × 67,378,640.20
  4. Step 4: Simplify right side
    220,752,512.80x = 22,311,006,199,795,644
  5. Step 5: Solve for x
    x = 22,311,006,199,795,644/220,752,512.80
  6. Step 6: Final answer
    x = 101,067,960.30

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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.