Home / 123,857,454.70-185,786,182.05-83,042,785.90

Finding the Fourth Proportional to 123,857,454.70, 185,786,182.05 and 83,042,785.90

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Solution

The fourth proportional to 123,857,454.70, 185,786,182.05 and 83,042,785.90 is: 124,564,178.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,857,454.70 : 185,786,182.05 = 83,042,785.90 : x
  2. Step 2: Convert to fraction form
    123,857,454.70/185,786,182.05 = 83,042,785.90/x
  3. Step 3: Cross multiply
    123,857,454.70x = 185,786,182.05 × 83,042,785.90
  4. Step 4: Simplify right side
    123,857,454.70x = 15,428,202,139,156,576
  5. Step 5: Solve for x
    x = 15,428,202,139,156,576/123,857,454.70
  6. Step 6: Final answer
    x = 124,564,178.85

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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.