Home / 82,979,542.80-124,469,314.20-39,932,821.80

Finding the Fourth Proportional to 82,979,542.80, 124,469,314.20 and 39,932,821.80

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Solution

The fourth proportional to 82,979,542.80, 124,469,314.20 and 39,932,821.80 is: 59,899,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,979,542.80 : 124,469,314.20 = 39,932,821.80 : x
  2. Step 2: Convert to fraction form
    82,979,542.80/124,469,314.20 = 39,932,821.80/x
  3. Step 3: Cross multiply
    82,979,542.80x = 124,469,314.20 × 39,932,821.80
  4. Step 4: Simplify right side
    82,979,542.80x = 4,970,410,943,516,809
  5. Step 5: Solve for x
    x = 4,970,410,943,516,809/82,979,542.80
  6. Step 6: Final answer
    x = 59,899,232.70

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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.