Home / 138,029,165.40-206,791,805.70-112,331,040.60

Finding the Fourth Proportional to 138,029,165.40, 206,791,805.70 and 112,331,040.60

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Solution

The fourth proportional to 138,029,165.40, 206,791,805.70 and 112,331,040.60 is: 168,291,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,029,165.40 : 206,791,805.70 = 112,331,040.60 : x
  2. Step 2: Convert to fraction form
    138,029,165.40/206,791,805.70 = 112,331,040.60/x
  3. Step 3: Cross multiply
    138,029,165.40x = 206,791,805.70 × 112,331,040.60
  4. Step 4: Simplify right side
    138,029,165.40x = 23,229,138,721,834,008
  5. Step 5: Solve for x
    x = 23,229,138,721,834,008/138,029,165.40
  6. Step 6: Final answer
    x = 168,291,524.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.