Home / 185,568,215,778.64-278,238,406,927.66-72,115,472,209.88

Finding the Fourth Proportional to 185,568,215,778.64, 278,238,406,927.66 and 72,115,472,209.88

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Solution

The fourth proportional to 185,568,215,778.64, 278,238,406,927.66 and 72,115,472,209.88 is: 108,128,938,020.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,568,215,778.64 : 278,238,406,927.66 = 72,115,472,209.88 : x
  2. Step 2: Convert to fraction form
    185,568,215,778.64/278,238,406,927.66 = 72,115,472,209.88/x
  3. Step 3: Cross multiply
    185,568,215,778.64x = 278,238,406,927.66 × 72,115,472,209.88
  4. Step 4: Simplify right side
    185,568,215,778.64x = 20,065,294,102,511,833,055,232
  5. Step 5: Solve for x
    x = 20,065,294,102,511,833,055,232/185,568,215,778.64
  6. Step 6: Final answer
    x = 108,128,938,020.55

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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.