Home / 239,565,761.72-330,601,747.42-129,557,474.72

Finding the Fourth Proportional to 239,565,761.72, 330,601,747.42 and 129,557,474.72

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Solution

The fourth proportional to 239,565,761.72, 330,601,747.42 and 129,557,474.72 is: 178,789,853.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565,761.72 : 330,601,747.42 = 129,557,474.72 : x
  2. Step 2: Convert to fraction form
    239,565,761.72/330,601,747.42 = 129,557,474.72/x
  3. Step 3: Cross multiply
    239,565,761.72x = 330,601,747.42 × 129,557,474.72
  4. Step 4: Simplify right side
    239,565,761.72x = 42,831,927,533,754,480
  5. Step 5: Solve for x
    x = 42,831,927,533,754,480/239,565,761.72
  6. Step 6: Final answer
    x = 178,789,853.88

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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.