Home / 20,695,416.47-28,560,322.26-11,876,481.12

Finding the Fourth Proportional to 20,695,416.47, 28,560,322.26 and 11,876,481.12

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Solution

The fourth proportional to 20,695,416.47, 28,560,322.26 and 11,876,481.12 is: 16,389,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695,416.47 : 28,560,322.26 = 11,876,481.12 : x
  2. Step 2: Convert to fraction form
    20,695,416.47/28,560,322.26 = 11,876,481.12/x
  3. Step 3: Cross multiply
    20,695,416.47x = 28,560,322.26 × 11,876,481.12
  4. Step 4: Simplify right side
    20,695,416.47x = 339,196,128,042,623.31
  5. Step 5: Solve for x
    x = 339,196,128,042,623.31/20,695,416.47
  6. Step 6: Final answer
    x = 16,389,915.55

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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.