Home / 13,257,121.57-18,292,084.40-7,749,431.29

Finding the Fourth Proportional to 13,257,121.57, 18,292,084.40 and 7,749,431.29

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Solution

The fourth proportional to 13,257,121.57, 18,292,084.40 and 7,749,431.29 is: 10,692,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257,121.57 : 18,292,084.40 = 7,749,431.29 : x
  2. Step 2: Convert to fraction form
    13,257,121.57/18,292,084.40 = 7,749,431.29/x
  3. Step 3: Cross multiply
    13,257,121.57x = 18,292,084.40 × 7,749,431.29
  4. Step 4: Simplify right side
    13,257,121.57x = 141,753,251,250,919.56
  5. Step 5: Solve for x
    x = 141,753,251,250,919.56/13,257,121.57
  6. Step 6: Final answer
    x = 10,692,611.55

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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.