Home / 81,856,216.40-122,784,324.60-49,119,450.80

Finding the Fourth Proportional to 81,856,216.40, 122,784,324.60 and 49,119,450.80

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Solution

The fourth proportional to 81,856,216.40, 122,784,324.60 and 49,119,450.80 is: 73,679,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,856,216.40 : 122,784,324.60 = 49,119,450.80 : x
  2. Step 2: Convert to fraction form
    81,856,216.40/122,784,324.60 = 49,119,450.80/x
  3. Step 3: Cross multiply
    81,856,216.40x = 122,784,324.60 × 49,119,450.80
  4. Step 4: Simplify right side
    81,856,216.40x = 6,031,098,591,200,929
  5. Step 5: Solve for x
    x = 6,031,098,591,200,929/81,856,216.40
  6. Step 6: Final answer
    x = 73,679,176.20

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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.