Home / 21,690,090,867.42-29,930,682,716.31-12,172,804,519.74

Finding the Fourth Proportional to 21,690,090,867.42, 29,930,682,716.31 and 12,172,804,519.74

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Solution

The fourth proportional to 21,690,090,867.42, 29,930,682,716.31 and 12,172,804,519.74 is: 16,797,548,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690,090,867.42 : 29,930,682,716.31 = 12,172,804,519.74 : x
  2. Step 2: Convert to fraction form
    21,690,090,867.42/29,930,682,716.31 = 12,172,804,519.74/x
  3. Step 3: Cross multiply
    21,690,090,867.42x = 29,930,682,716.31 × 12,172,804,519.74
  4. Step 4: Simplify right side
    21,690,090,867.42x = 364,340,349,848,002,297,856
  5. Step 5: Solve for x
    x = 364,340,349,848,002,297,856/21,690,090,867.42
  6. Step 6: Final answer
    x = 16,797,548,340.16

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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.