Home / 80,474,619.06-111,057,656.82-45,198,640.68

Finding the Fourth Proportional to 80,474,619.06, 111,057,656.82 and 45,198,640.68

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Solution

The fourth proportional to 80,474,619.06, 111,057,656.82 and 45,198,640.68 is: 62,375,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,474,619.06 : 111,057,656.82 = 45,198,640.68 : x
  2. Step 2: Convert to fraction form
    80,474,619.06/111,057,656.82 = 45,198,640.68/x
  3. Step 3: Cross multiply
    80,474,619.06x = 111,057,656.82 × 45,198,640.68
  4. Step 4: Simplify right side
    80,474,619.06x = 5,019,655,125,369,931
  5. Step 5: Solve for x
    x = 5,019,655,125,369,931/80,474,619.06
  6. Step 6: Final answer
    x = 62,375,630.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.