Home / 76,906,305.78-106,123,976.85-45,538,727.46

Finding the Fourth Proportional to 76,906,305.78, 106,123,976.85 and 45,538,727.46

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Solution

The fourth proportional to 76,906,305.78, 106,123,976.85 and 45,538,727.46 is: 62,839,461.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,906,305.78 : 106,123,976.85 = 45,538,727.46 : x
  2. Step 2: Convert to fraction form
    76,906,305.78/106,123,976.85 = 45,538,727.46/x
  3. Step 3: Cross multiply
    76,906,305.78x = 106,123,976.85 × 45,538,727.46
  4. Step 4: Simplify right side
    76,906,305.78x = 4,832,750,858,743,499
  5. Step 5: Solve for x
    x = 4,832,750,858,743,499/76,906,305.78
  6. Step 6: Final answer
    x = 62,839,461.73

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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.