Home / 393,699,926.90-543,322,406.25-226,436,234.73

Finding the Fourth Proportional to 393,699,926.90, 543,322,406.25 and 226,436,234.73

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Solution

The fourth proportional to 393,699,926.90, 543,322,406.25 and 226,436,234.73 is: 312,491,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,699,926.90 : 543,322,406.25 = 226,436,234.73 : x
  2. Step 2: Convert to fraction form
    393,699,926.90/543,322,406.25 = 226,436,234.73/x
  3. Step 3: Cross multiply
    393,699,926.90x = 543,322,406.25 × 226,436,234.73
  4. Step 4: Simplify right side
    393,699,926.90x = 123,027,879,915,693,408
  5. Step 5: Solve for x
    x = 123,027,879,915,693,408/393,699,926.90
  6. Step 6: Final answer
    x = 312,491,497.99

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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.