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Finding the Fourth Proportional to 71,867,010.40, 107,800,515.60 and 26,419,400.80

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Solution

The fourth proportional to 71,867,010.40, 107,800,515.60 and 26,419,400.80 is: 39,629,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,867,010.40 : 107,800,515.60 = 26,419,400.80 : x
  2. Step 2: Convert to fraction form
    71,867,010.40/107,800,515.60 = 26,419,400.80/x
  3. Step 3: Cross multiply
    71,867,010.40x = 107,800,515.60 × 26,419,400.80
  4. Step 4: Simplify right side
    71,867,010.40x = 2,848,025,028,083,052.50
  5. Step 5: Solve for x
    x = 2,848,025,028,083,052.50/71,867,010.40
  6. Step 6: Final answer
    x = 39,629,101.20

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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.