Home / 5,172,781.82-7,138,997.08-2,849,911.70

Finding the Fourth Proportional to 5,172,781.82, 7,138,997.08 and 2,849,911.70

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Solution

The fourth proportional to 5,172,781.82, 7,138,997.08 and 2,849,911.70 is: 3,933,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,781.82 : 7,138,997.08 = 2,849,911.70 : x
  2. Step 2: Convert to fraction form
    5,172,781.82/7,138,997.08 = 2,849,911.70/x
  3. Step 3: Cross multiply
    5,172,781.82x = 7,138,997.08 × 2,849,911.70
  4. Step 4: Simplify right side
    5,172,781.82x = 20,345,511,261,738.07
  5. Step 5: Solve for x
    x = 20,345,511,261,738.07/5,172,781.82
  6. Step 6: Final answer
    x = 3,933,185.66

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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.