Home / 138,681,113.17-191,071,785.70-91,554,253.90

Finding the Fourth Proportional to 138,681,113.17, 191,071,785.70 and 91,554,253.90

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Solution

The fourth proportional to 138,681,113.17, 191,071,785.70 and 91,554,253.90 is: 126,141,436.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,681,113.17 : 191,071,785.70 = 91,554,253.90 : x
  2. Step 2: Convert to fraction form
    138,681,113.17/191,071,785.70 = 91,554,253.90/x
  3. Step 3: Cross multiply
    138,681,113.17x = 191,071,785.70 × 91,554,253.90
  4. Step 4: Simplify right side
    138,681,113.17x = 17,493,434,781,104,190
  5. Step 5: Solve for x
    x = 17,493,434,781,104,190/138,681,113.17
  6. Step 6: Final answer
    x = 126,141,436.14

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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.