Home / 212,111,234.70-318,167,240.85-66,555,974.58

Finding the Fourth Proportional to 212,111,234.70, 318,167,240.85 and 66,555,974.58

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Solution

The fourth proportional to 212,111,234.70, 318,167,240.85 and 66,555,974.58 is: 99,834,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,111,234.70 : 318,167,240.85 = 66,555,974.58 : x
  2. Step 2: Convert to fraction form
    212,111,234.70/318,167,240.85 = 66,555,974.58/x
  3. Step 3: Cross multiply
    212,111,234.70x = 318,167,240.85 × 66,555,974.58
  4. Step 4: Simplify right side
    212,111,234.70x = 21,175,930,794,201,340
  5. Step 5: Solve for x
    x = 21,175,930,794,201,340/212,111,234.70
  6. Step 6: Final answer
    x = 99,834,083.87

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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.