Home / 20,458,190.48-28,235,963.60-12,198,785.72

Finding the Fourth Proportional to 20,458,190.48, 28,235,963.60 and 12,198,785.72

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Solution

The fourth proportional to 20,458,190.48, 28,235,963.60 and 12,198,785.72 is: 16,836,507.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,190.48 : 28,235,963.60 = 12,198,785.72 : x
  2. Step 2: Convert to fraction form
    20,458,190.48/28,235,963.60 = 12,198,785.72/x
  3. Step 3: Cross multiply
    20,458,190.48x = 28,235,963.60 × 12,198,785.72
  4. Step 4: Simplify right side
    20,458,190.48x = 344,444,469,554,119.81
  5. Step 5: Solve for x
    x = 344,444,469,554,119.81/20,458,190.48
  6. Step 6: Final answer
    x = 16,836,507.11

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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.