Home / 20,231,385.43-27,912,937.96-12,382,715.47

Finding the Fourth Proportional to 20,231,385.43, 27,912,937.96 and 12,382,715.47

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Solution

The fourth proportional to 20,231,385.43, 27,912,937.96 and 12,382,715.47 is: 17,084,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,385.43 : 27,912,937.96 = 12,382,715.47 : x
  2. Step 2: Convert to fraction form
    20,231,385.43/27,912,937.96 = 12,382,715.47/x
  3. Step 3: Cross multiply
    20,231,385.43x = 27,912,937.96 × 12,382,715.47
  4. Step 4: Simplify right side
    20,231,385.43x = 345,637,968,605,542.94
  5. Step 5: Solve for x
    x = 345,637,968,605,542.94/20,231,385.43
  6. Step 6: Final answer
    x = 17,084,246.15

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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.