Home / 81,591,200.80-122,386,801.20-27,738,512.80

Finding the Fourth Proportional to 81,591,200.80, 122,386,801.20 and 27,738,512.80

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Solution

The fourth proportional to 81,591,200.80, 122,386,801.20 and 27,738,512.80 is: 41,607,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,591,200.80 : 122,386,801.20 = 27,738,512.80 : x
  2. Step 2: Convert to fraction form
    81,591,200.80/122,386,801.20 = 27,738,512.80/x
  3. Step 3: Cross multiply
    81,591,200.80x = 122,386,801.20 × 27,738,512.80
  4. Step 4: Simplify right side
    81,591,200.80x = 3,394,827,851,637,255.50
  5. Step 5: Solve for x
    x = 3,394,827,851,637,255.50/81,591,200.80
  6. Step 6: Final answer
    x = 41,607,769.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.