Home / 20,794,269.78-28,694,166.56-11,501,639.88

Finding the Fourth Proportional to 20,794,269.78, 28,694,166.56 and 11,501,639.88

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Solution

The fourth proportional to 20,794,269.78, 28,694,166.56 and 11,501,639.88 is: 15,871,197.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,269.78 : 28,694,166.56 = 11,501,639.88 : x
  2. Step 2: Convert to fraction form
    20,794,269.78/28,694,166.56 = 11,501,639.88/x
  3. Step 3: Cross multiply
    20,794,269.78x = 28,694,166.56 × 11,501,639.88
  4. Step 4: Simplify right side
    20,794,269.78x = 330,029,970,429,858.44
  5. Step 5: Solve for x
    x = 330,029,970,429,858.44/20,794,269.78
  6. Step 6: Final answer
    x = 15,871,197.88

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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.