Home / 18,723,216.30-28,084,824.45-15,321,993.90

Finding the Fourth Proportional to 18,723,216.30, 28,084,824.45 and 15,321,993.90

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Solution

The fourth proportional to 18,723,216.30, 28,084,824.45 and 15,321,993.90 is: 22,982,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,216.30 : 28,084,824.45 = 15,321,993.90 : x
  2. Step 2: Convert to fraction form
    18,723,216.30/28,084,824.45 = 15,321,993.90/x
  3. Step 3: Cross multiply
    18,723,216.30x = 28,084,824.45 × 15,321,993.90
  4. Step 4: Simplify right side
    18,723,216.30x = 430,315,508,905,470.88
  5. Step 5: Solve for x
    x = 430,315,508,905,470.88/18,723,216.30
  6. Step 6: Final answer
    x = 22,982,990.85

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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.