Home / 20,474,202.53-28,254,564.79-11,306,845.28

Finding the Fourth Proportional to 20,474,202.53, 28,254,564.79 and 11,306,845.28

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Solution

The fourth proportional to 20,474,202.53, 28,254,564.79 and 11,306,845.28 is: 15,603,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,202.53 : 28,254,564.79 = 11,306,845.28 : x
  2. Step 2: Convert to fraction form
    20,474,202.53/28,254,564.79 = 11,306,845.28/x
  3. Step 3: Cross multiply
    20,474,202.53x = 28,254,564.79 × 11,306,845.28
  4. Step 4: Simplify right side
    20,474,202.53x = 319,469,992,576,635
  5. Step 5: Solve for x
    x = 319,469,992,576,635/20,474,202.53
  6. Step 6: Final answer
    x = 15,603,537.77

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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.