Home / 212,744,731.44-318,462,584.58-138,809,310.24

Finding the Fourth Proportional to 212,744,731.44, 318,462,584.58 and 138,809,310.24

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Solution

The fourth proportional to 212,744,731.44, 318,462,584.58 and 138,809,310.24 is: 207,786,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,744,731.44 : 318,462,584.58 = 138,809,310.24 : x
  2. Step 2: Convert to fraction form
    212,744,731.44/318,462,584.58 = 138,809,310.24/x
  3. Step 3: Cross multiply
    212,744,731.44x = 318,462,584.58 × 138,809,310.24
  4. Step 4: Simplify right side
    212,744,731.44x = 44,205,571,702,797,464
  5. Step 5: Solve for x
    x = 44,205,571,702,797,464/212,744,731.44
  6. Step 6: Final answer
    x = 207,786,916.29

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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.