Home / 279,278,591.88-385,404,453.34-161,872,022.46

Finding the Fourth Proportional to 279,278,591.88, 385,404,453.34 and 161,872,022.46

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Solution

The fourth proportional to 279,278,591.88, 385,404,453.34 and 161,872,022.46 is: 223,383,388.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,278,591.88 : 385,404,453.34 = 161,872,022.46 : x
  2. Step 2: Convert to fraction form
    279,278,591.88/385,404,453.34 = 161,872,022.46/x
  3. Step 3: Cross multiply
    279,278,591.88x = 385,404,453.34 × 161,872,022.46
  4. Step 4: Simplify right side
    279,278,591.88x = 62,386,198,327,236,504
  5. Step 5: Solve for x
    x = 62,386,198,327,236,504/279,278,591.88
  6. Step 6: Final answer
    x = 223,383,388.99

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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.