Home / 132,534,481.60-198,801,722.40-81,445,286.80

Finding the Fourth Proportional to 132,534,481.60, 198,801,722.40 and 81,445,286.80

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Solution

The fourth proportional to 132,534,481.60, 198,801,722.40 and 81,445,286.80 is: 122,167,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,534,481.60 : 198,801,722.40 = 81,445,286.80 : x
  2. Step 2: Convert to fraction form
    132,534,481.60/198,801,722.40 = 81,445,286.80/x
  3. Step 3: Cross multiply
    132,534,481.60x = 198,801,722.40 × 81,445,286.80
  4. Step 4: Simplify right side
    132,534,481.60x = 16,191,463,297,201,984
  5. Step 5: Solve for x
    x = 16,191,463,297,201,984/132,534,481.60
  6. Step 6: Final answer
    x = 122,167,930.20

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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.