Home / 214,431,964.44-321,783,990.82-91,611,207.20

Finding the Fourth Proportional to 214,431,964.44, 321,783,990.82 and 91,611,207.20

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Solution

The fourth proportional to 214,431,964.44, 321,783,990.82 and 91,611,207.20 is: 137,474,932.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,431,964.44 : 321,783,990.82 = 91,611,207.20 : x
  2. Step 2: Convert to fraction form
    214,431,964.44/321,783,990.82 = 91,611,207.20/x
  3. Step 3: Cross multiply
    214,431,964.44x = 321,783,990.82 × 91,611,207.20
  4. Step 4: Simplify right side
    214,431,964.44x = 29,479,019,856,653,920
  5. Step 5: Solve for x
    x = 29,479,019,856,653,920/214,431,964.44
  6. Step 6: Final answer
    x = 137,474,932.59

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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.