Home / 13,729,743.35-18,945,793.31-8,147,027.74

Finding the Fourth Proportional to 13,729,743.35, 18,945,793.31 and 8,147,027.74

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Solution

The fourth proportional to 13,729,743.35, 18,945,793.31 and 8,147,027.74 is: 11,242,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,743.35 : 18,945,793.31 = 8,147,027.74 : x
  2. Step 2: Convert to fraction form
    13,729,743.35/18,945,793.31 = 8,147,027.74/x
  3. Step 3: Cross multiply
    13,729,743.35x = 18,945,793.31 × 8,147,027.74
  4. Step 4: Simplify right side
    13,729,743.35x = 154,351,903,623,209.62
  5. Step 5: Solve for x
    x = 154,351,903,623,209.62/13,729,743.35
  6. Step 6: Final answer
    x = 11,242,155.05

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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.