Home / 281,326,658.88-422,376,522.48-143,245,033.68

Finding the Fourth Proportional to 281,326,658.88, 422,376,522.48 and 143,245,033.68

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Solution

The fourth proportional to 281,326,658.88, 422,376,522.48 and 143,245,033.68 is: 215,064,364.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,326,658.88 : 422,376,522.48 = 143,245,033.68 : x
  2. Step 2: Convert to fraction form
    281,326,658.88/422,376,522.48 = 143,245,033.68/x
  3. Step 3: Cross multiply
    281,326,658.88x = 422,376,522.48 × 143,245,033.68
  4. Step 4: Simplify right side
    281,326,658.88x = 60,503,339,188,288,880
  5. Step 5: Solve for x
    x = 60,503,339,188,288,880/281,326,658.88
  6. Step 6: Final answer
    x = 215,064,364.78

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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.