Home / 820,222,433.70-1,230,336,842.50-198,436,667.92

Finding the Fourth Proportional to 820,222,433.70, 1,230,336,842.50 and 198,436,667.92

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Solution

The fourth proportional to 820,222,433.70, 1,230,336,842.50 and 198,436,667.92 is: 297,655,774.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,222,433.70 : 1,230,336,842.50 = 198,436,667.92 : x
  2. Step 2: Convert to fraction form
    820,222,433.70/1,230,336,842.50 = 198,436,667.92/x
  3. Step 3: Cross multiply
    820,222,433.70x = 1,230,336,842.50 × 198,436,667.92
  4. Step 4: Simplify right side
    820,222,433.70x = 244,143,943,444,913,824
  5. Step 5: Solve for x
    x = 244,143,943,444,913,824/820,222,433.70
  6. Step 6: Final answer
    x = 297,655,774.11

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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.