Home / 212,786,755.44-318,476,859.28-193,665,508.32

Finding the Fourth Proportional to 212,786,755.44, 318,476,859.28 and 193,665,508.32

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Solution

The fourth proportional to 212,786,755.44, 318,476,859.28 and 193,665,508.32 is: 289,858,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,786,755.44 : 318,476,859.28 = 193,665,508.32 : x
  2. Step 2: Convert to fraction form
    212,786,755.44/318,476,859.28 = 193,665,508.32/x
  3. Step 3: Cross multiply
    212,786,755.44x = 318,476,859.28 × 193,665,508.32
  4. Step 4: Simplify right side
    212,786,755.44x = 61,677,982,840,618,304
  5. Step 5: Solve for x
    x = 61,677,982,840,618,304/212,786,755.44
  6. Step 6: Final answer
    x = 289,858,185.55

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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.