Home / 71,917,537.20-107,890,302.60-20,801,223.60

Finding the Fourth Proportional to 71,917,537.20, 107,890,302.60 and 20,801,223.60

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Solution

The fourth proportional to 71,917,537.20, 107,890,302.60 and 20,801,223.60 is: 31,205,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,917,537.20 : 107,890,302.60 = 20,801,223.60 : x
  2. Step 2: Convert to fraction form
    71,917,537.20/107,890,302.60 = 20,801,223.60/x
  3. Step 3: Cross multiply
    71,917,537.20x = 107,890,302.60 × 20,801,223.60
  4. Step 4: Simplify right side
    71,917,537.20x = 2,244,250,308,654,261.50
  5. Step 5: Solve for x
    x = 2,244,250,308,654,261.50/71,917,537.20
  6. Step 6: Final answer
    x = 31,205,883.79

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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.