Home / 538,240,394.88-806,674,049.28-261,957,209.76

Finding the Fourth Proportional to 538,240,394.88, 806,674,049.28 and 261,957,209.76

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Solution

The fourth proportional to 538,240,394.88, 806,674,049.28 and 261,957,209.76 is: 392,601,679.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,240,394.88 : 806,674,049.28 = 261,957,209.76 : x
  2. Step 2: Convert to fraction form
    538,240,394.88/806,674,049.28 = 261,957,209.76/x
  3. Step 3: Cross multiply
    538,240,394.88x = 806,674,049.28 × 261,957,209.76
  4. Step 4: Simplify right side
    538,240,394.88x = 211,314,083,135,189,536
  5. Step 5: Solve for x
    x = 211,314,083,135,189,536/538,240,394.88
  6. Step 6: Final answer
    x = 392,601,679.74

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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.