Home / 71,930,615.09-107,869,137.35-25,859,912.78

Finding the Fourth Proportional to 71,930,615.09, 107,869,137.35 and 25,859,912.78

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Solution

The fourth proportional to 71,930,615.09, 107,869,137.35 and 25,859,912.78 is: 38,780,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,930,615.09 : 107,869,137.35 = 25,859,912.78 : x
  2. Step 2: Convert to fraction form
    71,930,615.09/107,869,137.35 = 25,859,912.78/x
  3. Step 3: Cross multiply
    71,930,615.09x = 107,869,137.35 × 25,859,912.78
  4. Step 4: Simplify right side
    71,930,615.09x = 2,789,486,483,665,213.50
  5. Step 5: Solve for x
    x = 2,789,486,483,665,213.50/71,930,615.09
  6. Step 6: Final answer
    x = 38,780,239.55

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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.