Home / 20,231,386.43-27,912,939.34-12,382,716.47

Finding the Fourth Proportional to 20,231,386.43, 27,912,939.34 and 12,382,716.47

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Solution

The fourth proportional to 20,231,386.43, 27,912,939.34 and 12,382,716.47 is: 17,084,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,386.43 : 27,912,939.34 = 12,382,716.47 : x
  2. Step 2: Convert to fraction form
    20,231,386.43/27,912,939.34 = 12,382,716.47/x
  3. Step 3: Cross multiply
    20,231,386.43x = 27,912,939.34 × 12,382,716.47
  4. Step 4: Simplify right side
    20,231,386.43x = 345,638,013,691,528.94
  5. Step 5: Solve for x
    x = 345,638,013,691,528.94/20,231,386.43
  6. Step 6: Final answer
    x = 17,084,247.53

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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.