Home / 138,781,031.73-191,517,825.06-76,901,370.27

Finding the Fourth Proportional to 138,781,031.73, 191,517,825.06 and 76,901,370.27

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Solution

The fourth proportional to 138,781,031.73, 191,517,825.06 and 76,901,370.27 is: 106,123,891.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,781,031.73 : 191,517,825.06 = 76,901,370.27 : x
  2. Step 2: Convert to fraction form
    138,781,031.73/191,517,825.06 = 76,901,370.27/x
  3. Step 3: Cross multiply
    138,781,031.73x = 191,517,825.06 × 76,901,370.27
  4. Step 4: Simplify right side
    138,781,031.73x = 14,727,983,178,244,144
  5. Step 5: Solve for x
    x = 14,727,983,178,244,144/138,781,031.73
  6. Step 6: Final answer
    x = 106,123,891.68

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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.