Home / 820,222,417-1,230,336,817.44-198,436,651.24

Finding the Fourth Proportional to 820,222,417, 1,230,336,817.44 and 198,436,651.24

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Solution

The fourth proportional to 820,222,417, 1,230,336,817.44 and 198,436,651.24 is: 297,655,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,222,417 : 1,230,336,817.44 = 198,436,651.24 : x
  2. Step 2: Convert to fraction form
    820,222,417/1,230,336,817.44 = 198,436,651.24/x
  3. Step 3: Cross multiply
    820,222,417x = 1,230,336,817.44 × 198,436,651.24
  4. Step 4: Simplify right side
    820,222,417x = 244,143,917,950,072,864
  5. Step 5: Solve for x
    x = 244,143,917,950,072,864/820,222,417
  6. Step 6: Final answer
    x = 297,655,749.09

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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.