Home / 138,681,111.17-191,071,782.95-91,554,251.90

Finding the Fourth Proportional to 138,681,111.17, 191,071,782.95 and 91,554,251.90

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Solution

The fourth proportional to 138,681,111.17, 191,071,782.95 and 91,554,251.90 is: 126,141,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,681,111.17 : 191,071,782.95 = 91,554,251.90 : x
  2. Step 2: Convert to fraction form
    138,681,111.17/191,071,782.95 = 91,554,251.90/x
  3. Step 3: Cross multiply
    138,681,111.17x = 191,071,782.95 × 91,554,251.90
  4. Step 4: Simplify right side
    138,681,111.17x = 17,493,434,145,773,294
  5. Step 5: Solve for x
    x = 17,493,434,145,773,294/138,681,111.17
  6. Step 6: Final answer
    x = 126,141,433.38

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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.