Home / 78,116,223.52-117,179,206.88-20,608,550.04

Finding the Fourth Proportional to 78,116,223.52, 117,179,206.88 and 20,608,550.04

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Solution

The fourth proportional to 78,116,223.52, 117,179,206.88 and 20,608,550.04 is: 30,914,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,116,223.52 : 117,179,206.88 = 20,608,550.04 : x
  2. Step 2: Convert to fraction form
    78,116,223.52/117,179,206.88 = 20,608,550.04/x
  3. Step 3: Cross multiply
    78,116,223.52x = 117,179,206.88 × 20,608,550.04
  4. Step 4: Simplify right side
    78,116,223.52x = 2,414,893,548,970,371.50
  5. Step 5: Solve for x
    x = 2,414,893,548,970,371.50/78,116,223.52
  6. Step 6: Final answer
    x = 30,914,110.28

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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.