Home / 13,419,020.20-20,128,530.30-8,632,114.60

Finding the Fourth Proportional to 13,419,020.20, 20,128,530.30 and 8,632,114.60

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Solution

The fourth proportional to 13,419,020.20, 20,128,530.30 and 8,632,114.60 is: 12,948,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,020.20 : 20,128,530.30 = 8,632,114.60 : x
  2. Step 2: Convert to fraction form
    13,419,020.20/20,128,530.30 = 8,632,114.60/x
  3. Step 3: Cross multiply
    13,419,020.20x = 20,128,530.30 × 8,632,114.60
  4. Step 4: Simplify right side
    13,419,020.20x = 173,751,780,279,172.38
  5. Step 5: Solve for x
    x = 173,751,780,279,172.38/13,419,020.20
  6. Step 6: Final answer
    x = 12,948,171.90

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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.