Home / 12,486,847.60-18,726,772.20-3,969,794.80

Finding the Fourth Proportional to 12,486,847.60, 18,726,772.20 and 3,969,794.80

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Solution

The fourth proportional to 12,486,847.60, 18,726,772.20 and 3,969,794.80 is: 5,953,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,847.60 : 18,726,772.20 = 3,969,794.80 : x
  2. Step 2: Convert to fraction form
    12,486,847.60/18,726,772.20 = 3,969,794.80/x
  3. Step 3: Cross multiply
    12,486,847.60x = 18,726,772.20 × 3,969,794.80
  4. Step 4: Simplify right side
    12,486,847.60x = 74,341,442,900,344.55
  5. Step 5: Solve for x
    x = 74,341,442,900,344.55/12,486,847.60
  6. Step 6: Final answer
    x = 5,953,579.74

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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.