Home / 820,222,424.46-1,230,336,828.62-198,436,658.69

Finding the Fourth Proportional to 820,222,424.46, 1,230,336,828.62 and 198,436,658.69

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Solution

The fourth proportional to 820,222,424.46, 1,230,336,828.62 and 198,436,658.69 is: 297,655,760.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,222,424.46 : 1,230,336,828.62 = 198,436,658.69 : x
  2. Step 2: Convert to fraction form
    820,222,424.46/1,230,336,828.62 = 198,436,658.69/x
  3. Step 3: Cross multiply
    820,222,424.46x = 1,230,336,828.62 × 198,436,658.69
  4. Step 4: Simplify right side
    820,222,424.46x = 244,143,929,327,460,096
  5. Step 5: Solve for x
    x = 244,143,929,327,460,096/820,222,424.46
  6. Step 6: Final answer
    x = 297,655,760.25

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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.