Home / 981,128,132.01-1,471,910,947.13-281,565,734.72

Finding the Fourth Proportional to 981,128,132.01, 1,471,910,947.13 and 281,565,734.72

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Solution

The fourth proportional to 981,128,132.01, 1,471,910,947.13 and 281,565,734.72 is: 422,411,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,128,132.01 : 1,471,910,947.13 = 281,565,734.72 : x
  2. Step 2: Convert to fraction form
    981,128,132.01/1,471,910,947.13 = 281,565,734.72/x
  3. Step 3: Cross multiply
    981,128,132.01x = 1,471,910,947.13 × 281,565,734.72
  4. Step 4: Simplify right side
    981,128,132.01x = 414,439,687,264,413,824
  5. Step 5: Solve for x
    x = 414,439,687,264,413,824/981,128,132.01
  6. Step 6: Final answer
    x = 422,411,379.05

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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.