Home / 84,948,161.57-117,162,043.49-55,188,400.52

Finding the Fourth Proportional to 84,948,161.57, 117,162,043.49 and 55,188,400.52

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Solution

The fourth proportional to 84,948,161.57, 117,162,043.49 and 55,188,400.52 is: 76,116,841.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,948,161.57 : 117,162,043.49 = 55,188,400.52 : x
  2. Step 2: Convert to fraction form
    84,948,161.57/117,162,043.49 = 55,188,400.52/x
  3. Step 3: Cross multiply
    84,948,161.57x = 117,162,043.49 × 55,188,400.52
  4. Step 4: Simplify right side
    84,948,161.57x = 6,465,985,781,867,779
  5. Step 5: Solve for x
    x = 6,465,985,781,867,779/84,948,161.57
  6. Step 6: Final answer
    x = 76,116,841.88

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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.