Home / 279,687,836.48-385,846,770.16-266,720,676

Finding the Fourth Proportional to 279,687,836.48, 385,846,770.16 and 266,720,676

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Solution

The fourth proportional to 279,687,836.48, 385,846,770.16 and 266,720,676 is: 367,957,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,687,836.48 : 385,846,770.16 = 266,720,676 : x
  2. Step 2: Convert to fraction form
    279,687,836.48/385,846,770.16 = 266,720,676/x
  3. Step 3: Cross multiply
    279,687,836.48x = 385,846,770.16 × 266,720,676
  4. Step 4: Simplify right side
    279,687,836.48x = 102,913,311,369,491,840
  5. Step 5: Solve for x
    x = 102,913,311,369,491,840/279,687,836.48
  6. Step 6: Final answer
    x = 367,957,765.57

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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.