Home / 396,860,380.38-547,698,002.37-238,096,478.19

Finding the Fourth Proportional to 396,860,380.38, 547,698,002.37 and 238,096,478.19

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Solution

The fourth proportional to 396,860,380.38, 547,698,002.37 and 238,096,478.19 is: 328,591,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,860,380.38 : 547,698,002.37 = 238,096,478.19 : x
  2. Step 2: Convert to fraction form
    396,860,380.38/547,698,002.37 = 238,096,478.19/x
  3. Step 3: Cross multiply
    396,860,380.38x = 547,698,002.37 × 238,096,478.19
  4. Step 4: Simplify right side
    396,860,380.38x = 130,404,965,475,995,280
  5. Step 5: Solve for x
    x = 130,404,965,475,995,280/396,860,380.38
  6. Step 6: Final answer
    x = 328,591,544.84

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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.