Home / 13,305,906.40-19,958,859.60-4,786,520.80

Finding the Fourth Proportional to 13,305,906.40, 19,958,859.60 and 4,786,520.80

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Solution

The fourth proportional to 13,305,906.40, 19,958,859.60 and 4,786,520.80 is: 7,179,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305,906.40 : 19,958,859.60 = 4,786,520.80 : x
  2. Step 2: Convert to fraction form
    13,305,906.40/19,958,859.60 = 4,786,520.80/x
  3. Step 3: Cross multiply
    13,305,906.40x = 19,958,859.60 × 4,786,520.80
  4. Step 4: Simplify right side
    13,305,906.40x = 95,533,496,619,679.69
  5. Step 5: Solve for x
    x = 95,533,496,619,679.69/13,305,906.40
  6. Step 6: Final answer
    x = 7,179,781.20

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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.