Home / 78,436,033.26-117,517,702.01-55,043,162.97

Finding the Fourth Proportional to 78,436,033.26, 117,517,702.01 and 55,043,162.97

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Solution

The fourth proportional to 78,436,033.26, 117,517,702.01 and 55,043,162.97 is: 82,469,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,436,033.26 : 117,517,702.01 = 55,043,162.97 : x
  2. Step 2: Convert to fraction form
    78,436,033.26/117,517,702.01 = 55,043,162.97/x
  3. Step 3: Cross multiply
    78,436,033.26x = 117,517,702.01 × 55,043,162.97
  4. Step 4: Simplify right side
    78,436,033.26x = 6,468,546,023,596,327
  5. Step 5: Solve for x
    x = 6,468,546,023,596,327/78,436,033.26
  6. Step 6: Final answer
    x = 82,469,061.15

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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.