Home / 15,876,222.56-21,906,531.42-9,351,151.28

Finding the Fourth Proportional to 15,876,222.56, 21,906,531.42 and 9,351,151.28

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Solution

The fourth proportional to 15,876,222.56, 21,906,531.42 and 9,351,151.28 is: 12,903,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,876,222.56 : 21,906,531.42 = 9,351,151.28 : x
  2. Step 2: Convert to fraction form
    15,876,222.56/21,906,531.42 = 9,351,151.28/x
  3. Step 3: Cross multiply
    15,876,222.56x = 21,906,531.42 × 9,351,151.28
  4. Step 4: Simplify right side
    15,876,222.56x = 204,851,289,328,493.22
  5. Step 5: Solve for x
    x = 204,851,289,328,493.22/15,876,222.56
  6. Step 6: Final answer
    x = 12,903,024.54

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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.