Home / 20,661,839.40-30,957,329.70-13,469,671.20

Finding the Fourth Proportional to 20,661,839.40, 30,957,329.70 and 13,469,671.20

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Solution

The fourth proportional to 20,661,839.40, 30,957,329.70 and 13,469,671.20 is: 20,181,410.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,661,839.40 : 30,957,329.70 = 13,469,671.20 : x
  2. Step 2: Convert to fraction form
    20,661,839.40/30,957,329.70 = 13,469,671.20/x
  3. Step 3: Cross multiply
    20,661,839.40x = 30,957,329.70 × 13,469,671.20
  4. Step 4: Simplify right side
    20,661,839.40x = 416,985,052,288,994.62
  5. Step 5: Solve for x
    x = 416,985,052,288,994.62/20,661,839.40
  6. Step 6: Final answer
    x = 20,181,410.00

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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.