Home / 82,661,876.20-123,925,629.66-28,846,979.56

Finding the Fourth Proportional to 82,661,876.20, 123,925,629.66 and 28,846,979.56

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Solution

The fourth proportional to 82,661,876.20, 123,925,629.66 and 28,846,979.56 is: 43,247,023.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,661,876.20 : 123,925,629.66 = 28,846,979.56 : x
  2. Step 2: Convert to fraction form
    82,661,876.20/123,925,629.66 = 28,846,979.56/x
  3. Step 3: Cross multiply
    82,661,876.20x = 123,925,629.66 × 28,846,979.56
  4. Step 4: Simplify right side
    82,661,876.20x = 3,574,880,105,762,149.50
  5. Step 5: Solve for x
    x = 3,574,880,105,762,149.50/82,661,876.20
  6. Step 6: Final answer
    x = 43,247,023.54

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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.