Home / 486,132,877.39-729,200,437.06-280,217,093.87

Finding the Fourth Proportional to 486,132,877.39, 729,200,437.06 and 280,217,093.87

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Solution

The fourth proportional to 486,132,877.39, 729,200,437.06 and 280,217,093.87 is: 420,326,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,132,877.39 : 729,200,437.06 = 280,217,093.87 : x
  2. Step 2: Convert to fraction form
    486,132,877.39/729,200,437.06 = 280,217,093.87/x
  3. Step 3: Cross multiply
    486,132,877.39x = 729,200,437.06 × 280,217,093.87
  4. Step 4: Simplify right side
    486,132,877.39x = 204,334,427,320,499,872
  5. Step 5: Solve for x
    x = 204,334,427,320,499,872/486,132,877.39
  6. Step 6: Final answer
    x = 420,326,286.96

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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.