Home / 12,485,121.20-18,728,200.20-3,965,217.20

Finding the Fourth Proportional to 12,485,121.20, 18,728,200.20 and 3,965,217.20

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Solution

The fourth proportional to 12,485,121.20, 18,728,200.20 and 3,965,217.20 is: 5,947,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485,121.20 : 18,728,200.20 = 3,965,217.20 : x
  2. Step 2: Convert to fraction form
    12,485,121.20/18,728,200.20 = 3,965,217.20/x
  3. Step 3: Cross multiply
    12,485,121.20x = 18,728,200.20 × 3,965,217.20
  4. Step 4: Simplify right side
    12,485,121.20x = 74,261,381,558,083.44
  5. Step 5: Solve for x
    x = 74,261,381,558,083.44/12,485,121.20
  6. Step 6: Final answer
    x = 5,947,990.44

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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.