Home / 21,213,356,177.58-29,275,138,241.72-11,568,612,379.78

Finding the Fourth Proportional to 21,213,356,177.58, 29,275,138,241.72 and 11,568,612,379.78

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Solution

The fourth proportional to 21,213,356,177.58, 29,275,138,241.72 and 11,568,612,379.78 is: 15,965,070,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213,356,177.58 : 29,275,138,241.72 = 11,568,612,379.78 : x
  2. Step 2: Convert to fraction form
    21,213,356,177.58/29,275,138,241.72 = 11,568,612,379.78/x
  3. Step 3: Cross multiply
    21,213,356,177.58x = 29,275,138,241.72 × 11,568,612,379.78
  4. Step 4: Simplify right side
    21,213,356,177.58x = 338,672,726,682,932,936,704
  5. Step 5: Solve for x
    x = 338,672,726,682,932,936,704/21,213,356,177.58
  6. Step 6: Final answer
    x = 15,965,070,488.98

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.