Home / 11,991,739.74-16,543,952.55-7,640,046.78

Finding the Fourth Proportional to 11,991,739.74, 16,543,952.55 and 7,640,046.78

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Solution

The fourth proportional to 11,991,739.74, 16,543,952.55 and 7,640,046.78 is: 10,540,303.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991,739.74 : 16,543,952.55 = 7,640,046.78 : x
  2. Step 2: Convert to fraction form
    11,991,739.74/16,543,952.55 = 7,640,046.78/x
  3. Step 3: Cross multiply
    11,991,739.74x = 16,543,952.55 × 7,640,046.78
  4. Step 4: Simplify right side
    11,991,739.74x = 126,396,571,408,100.30
  5. Step 5: Solve for x
    x = 126,396,571,408,100.30/11,991,739.74
  6. Step 6: Final answer
    x = 10,540,303.09

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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.