Home / 239,565,857.56-330,601,879.38-129,557,570.56

Finding the Fourth Proportional to 239,565,857.56, 330,601,879.38 and 129,557,570.56

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Solution

The fourth proportional to 239,565,857.56, 330,601,879.38 and 129,557,570.56 is: 178,789,985.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,565,857.56 : 330,601,879.38 = 129,557,570.56 : x
  2. Step 2: Convert to fraction form
    239,565,857.56/330,601,879.38 = 129,557,570.56/x
  3. Step 3: Cross multiply
    239,565,857.56x = 330,601,879.38 × 129,557,570.56
  4. Step 4: Simplify right side
    239,565,857.56x = 42,831,976,315,042,960
  5. Step 5: Solve for x
    x = 42,831,976,315,042,960/239,565,857.56
  6. Step 6: Final answer
    x = 178,789,985.98

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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.