Home / 13,200,517.44-18,217,555.92-7,399,300.80

Finding the Fourth Proportional to 13,200,517.44, 18,217,555.92 and 7,399,300.80

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Solution

The fourth proportional to 13,200,517.44, 18,217,555.92 and 7,399,300.80 is: 10,211,506.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200,517.44 : 18,217,555.92 = 7,399,300.80 : x
  2. Step 2: Convert to fraction form
    13,200,517.44/18,217,555.92 = 7,399,300.80/x
  3. Step 3: Cross multiply
    13,200,517.44x = 18,217,555.92 × 7,399,300.80
  4. Step 4: Simplify right side
    13,200,517.44x = 134,797,176,092,900.75
  5. Step 5: Solve for x
    x = 134,797,176,092,900.75/13,200,517.44
  6. Step 6: Final answer
    x = 10,211,506.99

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1.5x scale

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.