Home / 132,295,383.15-198,469,563.75-74,085,840.78

Finding the Fourth Proportional to 132,295,383.15, 198,469,563.75 and 74,085,840.78

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Solution

The fourth proportional to 132,295,383.15, 198,469,563.75 and 74,085,840.78 is: 111,143,595.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,295,383.15 : 198,469,563.75 = 74,085,840.78 : x
  2. Step 2: Convert to fraction form
    132,295,383.15/198,469,563.75 = 74,085,840.78/x
  3. Step 3: Cross multiply
    132,295,383.15x = 198,469,563.75 × 74,085,840.78
  4. Step 4: Simplify right side
    132,295,383.15x = 14,703,784,499,658,560
  5. Step 5: Solve for x
    x = 14,703,784,499,658,560/132,295,383.15
  6. Step 6: Final answer
    x = 111,143,595.11

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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.