Home / 12,347,620.90-18,522,131.20-3,829,168.42

Finding the Fourth Proportional to 12,347,620.90, 18,522,131.20 and 3,829,168.42

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Solution

The fourth proportional to 12,347,620.90, 18,522,131.20 and 3,829,168.42 is: 5,743,969.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347,620.90 : 18,522,131.20 = 3,829,168.42 : x
  2. Step 2: Convert to fraction form
    12,347,620.90/18,522,131.20 = 3,829,168.42/x
  3. Step 3: Cross multiply
    12,347,620.90x = 18,522,131.20 × 3,829,168.42
  4. Step 4: Simplify right side
    12,347,620.90x = 70,924,359,862,136.70
  5. Step 5: Solve for x
    x = 70,924,359,862,136.70/12,347,620.90
  6. Step 6: Final answer
    x = 5,743,969.66

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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.