Home / 825,662,469.60-1,238,493,704.40-280,404,003.60

Finding the Fourth Proportional to 825,662,469.60, 1,238,493,704.40 and 280,404,003.60

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Solution

The fourth proportional to 825,662,469.60, 1,238,493,704.40 and 280,404,003.60 is: 420,606,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,662,469.60 : 1,238,493,704.40 = 280,404,003.60 : x
  2. Step 2: Convert to fraction form
    825,662,469.60/1,238,493,704.40 = 280,404,003.60/x
  3. Step 3: Cross multiply
    825,662,469.60x = 1,238,493,704.40 × 280,404,003.60
  4. Step 4: Simplify right side
    825,662,469.60x = 347,278,593,147,155,008
  5. Step 5: Solve for x
    x = 347,278,593,147,155,008/825,662,469.60
  6. Step 6: Final answer
    x = 420,606,005.40

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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.