Home / 138,781,030.98-191,517,824.03-76,901,369.52

Finding the Fourth Proportional to 138,781,030.98, 191,517,824.03 and 76,901,369.52

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Solution

The fourth proportional to 138,781,030.98, 191,517,824.03 and 76,901,369.52 is: 106,123,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,781,030.98 : 191,517,824.03 = 76,901,369.52 : x
  2. Step 2: Convert to fraction form
    138,781,030.98/191,517,824.03 = 76,901,369.52/x
  3. Step 3: Cross multiply
    138,781,030.98x = 191,517,824.03 × 76,901,369.52
  4. Step 4: Simplify right side
    138,781,030.98x = 14,727,982,955,012,858
  5. Step 5: Solve for x
    x = 14,727,982,955,012,858/138,781,030.98
  6. Step 6: Final answer
    x = 106,123,890.64

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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.