Home / 239,045,791.20-358,568,686.80-218,638,456.80

Finding the Fourth Proportional to 239,045,791.20, 358,568,686.80 and 218,638,456.80

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Solution

The fourth proportional to 239,045,791.20, 358,568,686.80 and 218,638,456.80 is: 327,957,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,045,791.20 : 358,568,686.80 = 218,638,456.80 : x
  2. Step 2: Convert to fraction form
    239,045,791.20/358,568,686.80 = 218,638,456.80/x
  3. Step 3: Cross multiply
    239,045,791.20x = 358,568,686.80 × 218,638,456.80
  4. Step 4: Simplify right side
    239,045,791.20x = 78,396,904,338,754,544
  5. Step 5: Solve for x
    x = 78,396,904,338,754,544/239,045,791.20
  6. Step 6: Final answer
    x = 327,957,685.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.