Home / 239,571,856.38-330,612,374.07-135,149,604.78

Finding the Fourth Proportional to 239,571,856.38, 330,612,374.07 and 135,149,604.78

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Solution

The fourth proportional to 239,571,856.38, 330,612,374.07 and 135,149,604.78 is: 186,508,266.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,571,856.38 : 330,612,374.07 = 135,149,604.78 : x
  2. Step 2: Convert to fraction form
    239,571,856.38/330,612,374.07 = 135,149,604.78/x
  3. Step 3: Cross multiply
    239,571,856.38x = 330,612,374.07 × 135,149,604.78
  4. Step 4: Simplify right side
    239,571,856.38x = 44,682,131,690,938,016
  5. Step 5: Solve for x
    x = 44,682,131,690,938,016/239,571,856.38
  6. Step 6: Final answer
    x = 186,508,266.73

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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.