Home / 81,188,819.22-111,932,183.80-64,498,936.62

Finding the Fourth Proportional to 81,188,819.22, 111,932,183.80 and 64,498,936.62

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Solution

The fourth proportional to 81,188,819.22, 111,932,183.80 and 64,498,936.62 is: 88,922,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,188,819.22 : 111,932,183.80 = 64,498,936.62 : x
  2. Step 2: Convert to fraction form
    81,188,819.22/111,932,183.80 = 64,498,936.62/x
  3. Step 3: Cross multiply
    81,188,819.22x = 111,932,183.80 × 64,498,936.62
  4. Step 4: Simplify right side
    81,188,819.22x = 7,219,506,828,654,390
  5. Step 5: Solve for x
    x = 7,219,506,828,654,390/81,188,819.22
  6. Step 6: Final answer
    x = 88,922,426.73

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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.