Home / 454,297,451.42-627,447,623.82-305,359,997.78

Finding the Fourth Proportional to 454,297,451.42, 627,447,623.82 and 305,359,997.78

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Solution

The fourth proportional to 454,297,451.42, 627,447,623.82 and 305,359,997.78 is: 421,744,397.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,297,451.42 : 627,447,623.82 = 305,359,997.78 : x
  2. Step 2: Convert to fraction form
    454,297,451.42/627,447,623.82 = 305,359,997.78/x
  3. Step 3: Cross multiply
    454,297,451.42x = 627,447,623.82 × 305,359,997.78
  4. Step 4: Simplify right side
    454,297,451.42x = 191,597,405,016,741,472
  5. Step 5: Solve for x
    x = 191,597,405,016,741,472/454,297,451.42
  6. Step 6: Final answer
    x = 421,744,397.68

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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.