Home / 288,584,777.80-398,236,324.17-156,422,936.76

Finding the Fourth Proportional to 288,584,777.80, 398,236,324.17 and 156,422,936.76

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Solution

The fourth proportional to 288,584,777.80, 398,236,324.17 and 156,422,936.76 is: 215,857,869.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,584,777.80 : 398,236,324.17 = 156,422,936.76 : x
  2. Step 2: Convert to fraction form
    288,584,777.80/398,236,324.17 = 156,422,936.76/x
  3. Step 3: Cross multiply
    288,584,777.80x = 398,236,324.17 × 156,422,936.76
  4. Step 4: Simplify right side
    288,584,777.80x = 62,293,295,351,178,768
  5. Step 5: Solve for x
    x = 62,293,295,351,178,768/288,584,777.80
  6. Step 6: Final answer
    x = 215,857,869.66

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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.