Home / 239,565,921.40-330,601,967.96-129,557,634.40

Finding the Fourth Proportional to 239,565,921.40, 330,601,967.96 and 129,557,634.40

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Solution

The fourth proportional to 239,565,921.40, 330,601,967.96 and 129,557,634.40 is: 178,790,074.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565,921.40 : 330,601,967.96 = 129,557,634.40 : x
  2. Step 2: Convert to fraction form
    239,565,921.40/330,601,967.96 = 129,557,634.40/x
  3. Step 3: Cross multiply
    239,565,921.40x = 330,601,967.96 × 129,557,634.40
  4. Step 4: Simplify right side
    239,565,921.40x = 42,832,008,896,882,192
  5. Step 5: Solve for x
    x = 42,832,008,896,882,192/239,565,921.40
  6. Step 6: Final answer
    x = 178,790,074.34

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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.