Home / 151,687,870.33-209,327,770.78-82,071,723.73

Finding the Fourth Proportional to 151,687,870.33, 209,327,770.78 and 82,071,723.73

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Solution

The fourth proportional to 151,687,870.33, 209,327,770.78 and 82,071,723.73 is: 113,258,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,687,870.33 : 209,327,770.78 = 82,071,723.73 : x
  2. Step 2: Convert to fraction form
    151,687,870.33/209,327,770.78 = 82,071,723.73/x
  3. Step 3: Cross multiply
    151,687,870.33x = 209,327,770.78 × 82,071,723.73
  4. Step 4: Simplify right side
    151,687,870.33x = 17,179,890,972,472,928
  5. Step 5: Solve for x
    x = 17,179,890,972,472,928/151,687,870.33
  6. Step 6: Final answer
    x = 113,258,172.42

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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.