Home / 279,760,677.21-385,914,748.05-196,253,138.52

Finding the Fourth Proportional to 279,760,677.21, 385,914,748.05 and 196,253,138.52

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Solution

The fourth proportional to 279,760,677.21, 385,914,748.05 and 196,253,138.52 is: 270,720,607.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,760,677.21 : 385,914,748.05 = 196,253,138.52 : x
  2. Step 2: Convert to fraction form
    279,760,677.21/385,914,748.05 = 196,253,138.52/x
  3. Step 3: Cross multiply
    279,760,677.21x = 385,914,748.05 × 196,253,138.52
  4. Step 4: Simplify right side
    279,760,677.21x = 75,736,980,505,967,552
  5. Step 5: Solve for x
    x = 75,736,980,505,967,552/279,760,677.21
  6. Step 6: Final answer
    x = 270,720,607.56

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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.