Home / 12,540,969.20-18,810,540.20-5,626,589.64

Finding the Fourth Proportional to 12,540,969.20, 18,810,540.20 and 5,626,589.64

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Solution

The fourth proportional to 12,540,969.20, 18,810,540.20 and 5,626,589.64 is: 8,439,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540,969.20 : 18,810,540.20 = 5,626,589.64 : x
  2. Step 2: Convert to fraction form
    12,540,969.20/18,810,540.20 = 5,626,589.64/x
  3. Step 3: Cross multiply
    12,540,969.20x = 18,810,540.20 × 5,626,589.64
  4. Step 4: Simplify right side
    12,540,969.20x = 105,839,190,612,123.52
  5. Step 5: Solve for x
    x = 105,839,190,612,123.52/12,540,969.20
  6. Step 6: Final answer
    x = 8,439,474.57

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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.