Home / 378,198,789.18-522,157,185.27-237,263,195.58

Finding the Fourth Proportional to 378,198,789.18, 522,157,185.27 and 237,263,195.58

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Solution

The fourth proportional to 378,198,789.18, 522,157,185.27 and 237,263,195.58 is: 327,575,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,198,789.18 : 522,157,185.27 = 237,263,195.58 : x
  2. Step 2: Convert to fraction form
    378,198,789.18/522,157,185.27 = 237,263,195.58/x
  3. Step 3: Cross multiply
    378,198,789.18x = 522,157,185.27 × 237,263,195.58
  4. Step 4: Simplify right side
    378,198,789.18x = 123,888,682,372,218,304
  5. Step 5: Solve for x
    x = 123,888,682,372,218,304/378,198,789.18
  6. Step 6: Final answer
    x = 327,575,565.86

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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.