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Finding the Fourth Proportional to 269,481,187.80, 404,361,749.70 and 125,874,019.80

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Solution

The fourth proportional to 269,481,187.80, 404,361,749.70 and 125,874,019.80 is: 188,876,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,481,187.80 : 404,361,749.70 = 125,874,019.80 : x
  2. Step 2: Convert to fraction form
    269,481,187.80/404,361,749.70 = 125,874,019.80/x
  3. Step 3: Cross multiply
    269,481,187.80x = 404,361,749.70 × 125,874,019.80
  4. Step 4: Simplify right side
    269,481,187.80x = 50,898,638,888,100,440
  5. Step 5: Solve for x
    x = 50,898,638,888,100,440/269,481,187.80
  6. Step 6: Final answer
    x = 188,876,408.42

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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.