Home / 13,389,865.29-18,480,034.11-8,165,904.15

Finding the Fourth Proportional to 13,389,865.29, 18,480,034.11 and 8,165,904.15

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Solution

The fourth proportional to 13,389,865.29, 18,480,034.11 and 8,165,904.15 is: 11,270,179.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389,865.29 : 18,480,034.11 = 8,165,904.15 : x
  2. Step 2: Convert to fraction form
    13,389,865.29/18,480,034.11 = 8,165,904.15/x
  3. Step 3: Cross multiply
    13,389,865.29x = 18,480,034.11 × 8,165,904.15
  4. Step 4: Simplify right side
    13,389,865.29x = 150,906,187,230,990.56
  5. Step 5: Solve for x
    x = 150,906,187,230,990.56/13,389,865.29
  6. Step 6: Final answer
    x = 11,270,179.64

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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.