Home / 20,485,453.12-28,269,593.76-11,192,824

Finding the Fourth Proportional to 20,485,453.12, 28,269,593.76 and 11,192,824

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Solution

The fourth proportional to 20,485,453.12, 28,269,593.76 and 11,192,824 is: 15,445,915.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,485,453.12 : 28,269,593.76 = 11,192,824 : x
  2. Step 2: Convert to fraction form
    20,485,453.12/28,269,593.76 = 11,192,824/x
  3. Step 3: Cross multiply
    20,485,453.12x = 28,269,593.76 × 11,192,824
  4. Step 4: Simplify right side
    20,485,453.12x = 316,416,587,507,178.25
  5. Step 5: Solve for x
    x = 316,416,587,507,178.25/20,485,453.12
  6. Step 6: Final answer
    x = 15,445,915.97

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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.