Home / 20,680,019.20-31,034,025.60-9,314,617.60

Finding the Fourth Proportional to 20,680,019.20, 31,034,025.60 and 9,314,617.60

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Solution

The fourth proportional to 20,680,019.20, 31,034,025.60 and 9,314,617.60 is: 13,978,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680,019.20 : 31,034,025.60 = 9,314,617.60 : x
  2. Step 2: Convert to fraction form
    20,680,019.20/31,034,025.60 = 9,314,617.60/x
  3. Step 3: Cross multiply
    20,680,019.20x = 31,034,025.60 × 9,314,617.60
  4. Step 4: Simplify right side
    20,680,019.20x = 289,070,081,052,610.56
  5. Step 5: Solve for x
    x = 289,070,081,052,610.56/20,680,019.20
  6. Step 6: Final answer
    x = 13,978,230.79

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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.