Home / 18,288,891.20-27,405,343.20-17,281,121.60

Finding the Fourth Proportional to 18,288,891.20, 27,405,343.20 and 17,281,121.60

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Solution

The fourth proportional to 18,288,891.20, 27,405,343.20 and 17,281,121.60 is: 25,895,231.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,288,891.20 : 27,405,343.20 = 17,281,121.60 : x
  2. Step 2: Convert to fraction form
    18,288,891.20/27,405,343.20 = 17,281,121.60/x
  3. Step 3: Cross multiply
    18,288,891.20x = 27,405,343.20 × 17,281,121.60
  4. Step 4: Simplify right side
    18,288,891.20x = 473,595,068,328,933.12
  5. Step 5: Solve for x
    x = 473,595,068,328,933.12/18,288,891.20
  6. Step 6: Final answer
    x = 25,895,231.33

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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.