Home / 185,568,215,855.19-278,238,407,042.41-72,115,472,286.42

Finding the Fourth Proportional to 185,568,215,855.19, 278,238,407,042.41 and 72,115,472,286.42

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Solution

The fourth proportional to 185,568,215,855.19, 278,238,407,042.41 and 72,115,472,286.42 is: 108,128,938,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,568,215,855.19 : 278,238,407,042.41 = 72,115,472,286.42 : x
  2. Step 2: Convert to fraction form
    185,568,215,855.19/278,238,407,042.41 = 72,115,472,286.42/x
  3. Step 3: Cross multiply
    185,568,215,855.19x = 278,238,407,042.41 × 72,115,472,286.42
  4. Step 4: Simplify right side
    185,568,215,855.19x = 20,065,294,132,084,561,936,384
  5. Step 5: Solve for x
    x = 20,065,294,132,084,561,936,384/185,568,215,855.19
  6. Step 6: Final answer
    x = 108,128,938,135.30

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1.5x scale

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.