Home / 81,645,600.60-122,468,400.90-75,410,026.20

Finding the Fourth Proportional to 81,645,600.60, 122,468,400.90 and 75,410,026.20

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Solution

The fourth proportional to 81,645,600.60, 122,468,400.90 and 75,410,026.20 is: 113,115,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645,600.60 : 122,468,400.90 = 75,410,026.20 : x
  2. Step 2: Convert to fraction form
    81,645,600.60/122,468,400.90 = 75,410,026.20/x
  3. Step 3: Cross multiply
    81,645,600.60x = 122,468,400.90 × 75,410,026.20
  4. Step 4: Simplify right side
    81,645,600.60x = 9,235,345,320,541,104
  5. Step 5: Solve for x
    x = 9,235,345,320,541,104/81,645,600.60
  6. Step 6: Final answer
    x = 113,115,039.30

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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.