Home / 13,419,209.60-20,128,814.40-3,321,830.60

Finding the Fourth Proportional to 13,419,209.60, 20,128,814.40 and 3,321,830.60

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Solution

The fourth proportional to 13,419,209.60, 20,128,814.40 and 3,321,830.60 is: 4,982,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,209.60 : 20,128,814.40 = 3,321,830.60 : x
  2. Step 2: Convert to fraction form
    13,419,209.60/20,128,814.40 = 3,321,830.60/x
  3. Step 3: Cross multiply
    13,419,209.60x = 20,128,814.40 × 3,321,830.60
  4. Step 4: Simplify right side
    13,419,209.60x = 66,864,511,615,640.64
  5. Step 5: Solve for x
    x = 66,864,511,615,640.64/13,419,209.60
  6. Step 6: Final answer
    x = 4,982,745.90

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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.