Home / 15,420,620.34-21,280,581.09-8,545,217.22

Finding the Fourth Proportional to 15,420,620.34, 21,280,581.09 and 8,545,217.22

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Solution

The fourth proportional to 15,420,620.34, 21,280,581.09 and 8,545,217.22 is: 11,792,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,620.34 : 21,280,581.09 = 8,545,217.22 : x
  2. Step 2: Convert to fraction form
    15,420,620.34/21,280,581.09 = 8,545,217.22/x
  3. Step 3: Cross multiply
    15,420,620.34x = 21,280,581.09 × 8,545,217.22
  4. Step 4: Simplify right side
    15,420,620.34x = 181,847,187,981,874.38
  5. Step 5: Solve for x
    x = 181,847,187,981,874.38/15,420,620.34
  6. Step 6: Final answer
    x = 11,792,469.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.