Home / 20,383,224.75-28,129,626.27-11,683,076.31

Finding the Fourth Proportional to 20,383,224.75, 28,129,626.27 and 11,683,076.31

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Solution

The fourth proportional to 20,383,224.75, 28,129,626.27 and 11,683,076.31 is: 16,123,090.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,383,224.75 : 28,129,626.27 = 11,683,076.31 : x
  2. Step 2: Convert to fraction form
    20,383,224.75/28,129,626.27 = 11,683,076.31/x
  3. Step 3: Cross multiply
    20,383,224.75x = 28,129,626.27 × 11,683,076.31
  4. Step 4: Simplify right side
    20,383,224.75x = 328,640,570,284,190.69
  5. Step 5: Solve for x
    x = 328,640,570,284,190.69/20,383,224.75
  6. Step 6: Final answer
    x = 16,123,090.15

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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.