Home / 84,187,286.20-126,280,929.30-47,907,580.60

Finding the Fourth Proportional to 84,187,286.20, 126,280,929.30 and 47,907,580.60

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Solution

The fourth proportional to 84,187,286.20, 126,280,929.30 and 47,907,580.60 is: 71,861,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,187,286.20 : 126,280,929.30 = 47,907,580.60 : x
  2. Step 2: Convert to fraction form
    84,187,286.20/126,280,929.30 = 47,907,580.60/x
  3. Step 3: Cross multiply
    84,187,286.20x = 126,280,929.30 × 47,907,580.60
  4. Step 4: Simplify right side
    84,187,286.20x = 6,049,813,798,682,652
  5. Step 5: Solve for x
    x = 6,049,813,798,682,652/84,187,286.20
  6. Step 6: Final answer
    x = 71,861,370.90

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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.