Home / 5,147,512.20-7,722,189.90-2,155,998.60

Finding the Fourth Proportional to 5,147,512.20, 7,722,189.90 and 2,155,998.60

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Solution

The fourth proportional to 5,147,512.20, 7,722,189.90 and 2,155,998.60 is: 3,234,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147,512.20 : 7,722,189.90 = 2,155,998.60 : x
  2. Step 2: Convert to fraction form
    5,147,512.20/7,722,189.90 = 2,155,998.60/x
  3. Step 3: Cross multiply
    5,147,512.20x = 7,722,189.90 × 2,155,998.60
  4. Step 4: Simplify right side
    5,147,512.20x = 16,649,030,613,334.14
  5. Step 5: Solve for x
    x = 16,649,030,613,334.14/5,147,512.20
  6. Step 6: Final answer
    x = 3,234,383.91

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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.