Home / 216,206,373.76-324,826,939.31-138,635,257.13

Finding the Fourth Proportional to 216,206,373.76, 324,826,939.31 and 138,635,257.13

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Solution

The fourth proportional to 216,206,373.76, 324,826,939.31 and 138,635,257.13 is: 208,284,637.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,206,373.76 : 324,826,939.31 = 138,635,257.13 : x
  2. Step 2: Convert to fraction form
    216,206,373.76/324,826,939.31 = 138,635,257.13/x
  3. Step 3: Cross multiply
    216,206,373.76x = 324,826,939.31 × 138,635,257.13
  4. Step 4: Simplify right side
    216,206,373.76x = 45,032,466,252,715,208
  5. Step 5: Solve for x
    x = 45,032,466,252,715,208/216,206,373.76
  6. Step 6: Final answer
    x = 208,284,637.82

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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.