Home / 404,286,288.78-557,915,451.17-218,647,304.67

Finding the Fourth Proportional to 404,286,288.78, 557,915,451.17 and 218,647,304.67

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Solution

The fourth proportional to 404,286,288.78, 557,915,451.17 and 218,647,304.67 is: 301,733,481.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,286,288.78 : 557,915,451.17 = 218,647,304.67 : x
  2. Step 2: Convert to fraction form
    404,286,288.78/557,915,451.17 = 218,647,304.67/x
  3. Step 3: Cross multiply
    404,286,288.78x = 557,915,451.17 × 218,647,304.67
  4. Step 4: Simplify right side
    404,286,288.78x = 121,986,709,630,974,240
  5. Step 5: Solve for x
    x = 121,986,709,630,974,240/404,286,288.78
  6. Step 6: Final answer
    x = 301,733,481.98

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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.