Home / 123,321,879.60-184,982,819.40-72,261,553.20

Finding the Fourth Proportional to 123,321,879.60, 184,982,819.40 and 72,261,553.20

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Solution

The fourth proportional to 123,321,879.60, 184,982,819.40 and 72,261,553.20 is: 108,392,329.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,321,879.60 : 184,982,819.40 = 72,261,553.20 : x
  2. Step 2: Convert to fraction form
    123,321,879.60/184,982,819.40 = 72,261,553.20/x
  3. Step 3: Cross multiply
    123,321,879.60x = 184,982,819.40 × 72,261,553.20
  4. Step 4: Simplify right side
    123,321,879.60x = 13,367,145,845,159,094
  5. Step 5: Solve for x
    x = 13,367,145,845,159,094/123,321,879.60
  6. Step 6: Final answer
    x = 108,392,329.80

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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.