Home / 20,012,936.72-27,620,814.38-12,671,451.09

Finding the Fourth Proportional to 20,012,936.72, 27,620,814.38 and 12,671,451.09

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Solution

The fourth proportional to 20,012,936.72, 27,620,814.38 and 12,671,451.09 is: 17,488,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,012,936.72 : 27,620,814.38 = 12,671,451.09 : x
  2. Step 2: Convert to fraction form
    20,012,936.72/27,620,814.38 = 12,671,451.09/x
  3. Step 3: Cross multiply
    20,012,936.72x = 27,620,814.38 × 12,671,451.09
  4. Step 4: Simplify right side
    20,012,936.72x = 349,995,798,418,781.44
  5. Step 5: Solve for x
    x = 349,995,798,418,781.44/20,012,936.72
  6. Step 6: Final answer
    x = 17,488,477.75

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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.