Home / 18,215,930.80-27,323,896.20-4,752,758.80

Finding the Fourth Proportional to 18,215,930.80, 27,323,896.20 and 4,752,758.80

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Solution

The fourth proportional to 18,215,930.80, 27,323,896.20 and 4,752,758.80 is: 7,129,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,215,930.80 : 27,323,896.20 = 4,752,758.80 : x
  2. Step 2: Convert to fraction form
    18,215,930.80/27,323,896.20 = 4,752,758.80/x
  3. Step 3: Cross multiply
    18,215,930.80x = 27,323,896.20 × 4,752,758.80
  4. Step 4: Simplify right side
    18,215,930.80x = 129,863,888,114,836.55
  5. Step 5: Solve for x
    x = 129,863,888,114,836.55/18,215,930.80
  6. Step 6: Final answer
    x = 7,129,138.20

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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.