Home / 326,964,081.78-489,961,789.65-269,082,808.56

Finding the Fourth Proportional to 326,964,081.78, 489,961,789.65 and 269,082,808.56

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Solution

The fourth proportional to 326,964,081.78, 489,961,789.65 and 269,082,808.56 is: 403,225,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,964,081.78 : 489,961,789.65 = 269,082,808.56 : x
  2. Step 2: Convert to fraction form
    326,964,081.78/489,961,789.65 = 269,082,808.56/x
  3. Step 3: Cross multiply
    326,964,081.78x = 489,961,789.65 × 269,082,808.56
  4. Step 4: Simplify right side
    326,964,081.78x = 131,840,294,446,105,936
  5. Step 5: Solve for x
    x = 131,840,294,446,105,936/326,964,081.78
  6. Step 6: Final answer
    x = 403,225,619.55

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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.