Home / 81,645,607.60-122,468,411.40-75,410,033.20

Finding the Fourth Proportional to 81,645,607.60, 122,468,411.40 and 75,410,033.20

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Solution

The fourth proportional to 81,645,607.60, 122,468,411.40 and 75,410,033.20 is: 113,115,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,645,607.60 : 122,468,411.40 = 75,410,033.20 : x
  2. Step 2: Convert to fraction form
    81,645,607.60/122,468,411.40 = 75,410,033.20/x
  3. Step 3: Cross multiply
    81,645,607.60x = 122,468,411.40 × 75,410,033.20
  4. Step 4: Simplify right side
    81,645,607.60x = 9,235,346,969,625,260
  5. Step 5: Solve for x
    x = 9,235,346,969,625,260/81,645,607.60
  6. Step 6: Final answer
    x = 113,115,049.80

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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.