Home / 68,001,696-102,002,481.68-21,315,517.55

Finding the Fourth Proportional to 68,001,696, 102,002,481.68 and 21,315,517.55

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Solution

The fourth proportional to 68,001,696, 102,002,481.68 and 21,315,517.55 is: 31,973,256.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,001,696 : 102,002,481.68 = 21,315,517.55 : x
  2. Step 2: Convert to fraction form
    68,001,696/102,002,481.68 = 21,315,517.55/x
  3. Step 3: Cross multiply
    68,001,696x = 102,002,481.68 × 21,315,517.55
  4. Step 4: Simplify right side
    68,001,696x = 2,174,235,687,777,003.50
  5. Step 5: Solve for x
    x = 2,174,235,687,777,003.50/68,001,696
  6. Step 6: Final answer
    x = 31,973,256.78

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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.