Home / 13,540,434.90-20,315,708.49-5,455,704.21

Finding the Fourth Proportional to 13,540,434.90, 20,315,708.49 and 5,455,704.21

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Solution

The fourth proportional to 13,540,434.90, 20,315,708.49 and 5,455,704.21 is: 8,185,593.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,540,434.90 : 20,315,708.49 = 5,455,704.21 : x
  2. Step 2: Convert to fraction form
    13,540,434.90/20,315,708.49 = 5,455,704.21/x
  3. Step 3: Cross multiply
    13,540,434.90x = 20,315,708.49 × 5,455,704.21
  4. Step 4: Simplify right side
    13,540,434.90x = 110,836,496,338,025.73
  5. Step 5: Solve for x
    x = 110,836,496,338,025.73/13,540,434.90
  6. Step 6: Final answer
    x = 8,185,593.53

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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.