Home / 981,128,142.54-1,471,910,962.92-281,565,745.26

Finding the Fourth Proportional to 981,128,142.54, 1,471,910,962.92 and 281,565,745.26

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Solution

The fourth proportional to 981,128,142.54, 1,471,910,962.92 and 281,565,745.26 is: 422,411,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,128,142.54 : 1,471,910,962.92 = 281,565,745.26 : x
  2. Step 2: Convert to fraction form
    981,128,142.54/1,471,910,962.92 = 281,565,745.26/x
  3. Step 3: Cross multiply
    981,128,142.54x = 1,471,910,962.92 × 281,565,745.26
  4. Step 4: Simplify right side
    981,128,142.54x = 414,439,707,230,934,016
  5. Step 5: Solve for x
    x = 414,439,707,230,934,016/981,128,142.54
  6. Step 6: Final answer
    x = 422,411,394.86

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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.