Home / 18,980,286.12-28,471,216.50-5,517,114.12

Finding the Fourth Proportional to 18,980,286.12, 28,471,216.50 and 5,517,114.12

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Solution

The fourth proportional to 18,980,286.12, 28,471,216.50 and 5,517,114.12 is: 8,275,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,980,286.12 : 28,471,216.50 = 5,517,114.12 : x
  2. Step 2: Convert to fraction form
    18,980,286.12/28,471,216.50 = 5,517,114.12/x
  3. Step 3: Cross multiply
    18,980,286.12x = 28,471,216.50 × 5,517,114.12
  4. Step 4: Simplify right side
    18,980,286.12x = 157,078,950,565,726.97
  5. Step 5: Solve for x
    x = 157,078,950,565,726.97/18,980,286.12
  6. Step 6: Final answer
    x = 8,275,900.04

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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.