Home / 13,738,352.57-18,959,544.97-8,231,609.19

Finding the Fourth Proportional to 13,738,352.57, 18,959,544.97 and 8,231,609.19

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Solution

The fourth proportional to 13,738,352.57, 18,959,544.97 and 8,231,609.19 is: 11,359,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738,352.57 : 18,959,544.97 = 8,231,609.19 : x
  2. Step 2: Convert to fraction form
    13,738,352.57/18,959,544.97 = 8,231,609.19/x
  3. Step 3: Cross multiply
    13,738,352.57x = 18,959,544.97 × 8,231,609.19
  4. Step 4: Simplify right side
    13,738,352.57x = 156,067,564,648,702.28
  5. Step 5: Solve for x
    x = 156,067,564,648,702.28/13,738,352.57
  6. Step 6: Final answer
    x = 11,359,991.23

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Double scale
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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.