Home / 20,538,487.44-28,343,876.76-11,719,374.48

Finding the Fourth Proportional to 20,538,487.44, 28,343,876.76 and 11,719,374.48

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Solution

The fourth proportional to 20,538,487.44, 28,343,876.76 and 11,719,374.48 is: 16,173,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538,487.44 : 28,343,876.76 = 11,719,374.48 : x
  2. Step 2: Convert to fraction form
    20,538,487.44/28,343,876.76 = 11,719,374.48/x
  3. Step 3: Cross multiply
    20,538,487.44x = 28,343,876.76 × 11,719,374.48
  4. Step 4: Simplify right side
    20,538,487.44x = 332,172,505,965,409.12
  5. Step 5: Solve for x
    x = 332,172,505,965,409.12/20,538,487.44
  6. Step 6: Final answer
    x = 16,173,172.78

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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.