Home / 18,436,509.72-25,451,949.06-13,469,380.20

Finding the Fourth Proportional to 18,436,509.72, 25,451,949.06 and 13,469,380.20

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Solution

The fourth proportional to 18,436,509.72, 25,451,949.06 and 13,469,380.20 is: 18,594,733.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436,509.72 : 25,451,949.06 = 13,469,380.20 : x
  2. Step 2: Convert to fraction form
    18,436,509.72/25,451,949.06 = 13,469,380.20/x
  3. Step 3: Cross multiply
    18,436,509.72x = 25,451,949.06 × 13,469,380.20
  4. Step 4: Simplify right side
    18,436,509.72x = 342,821,978,720,172.56
  5. Step 5: Solve for x
    x = 342,821,978,720,172.56/18,436,509.72
  6. Step 6: Final answer
    x = 18,594,733.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.