Home / 396,931,174.98-547,765,471.82-220,715,386.80

Finding the Fourth Proportional to 396,931,174.98, 547,765,471.82 and 220,715,386.80

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Solution

The fourth proportional to 396,931,174.98, 547,765,471.82 and 220,715,386.80 is: 304,587,484.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,931,174.98 : 547,765,471.82 = 220,715,386.80 : x
  2. Step 2: Convert to fraction form
    396,931,174.98/547,765,471.82 = 220,715,386.80/x
  3. Step 3: Cross multiply
    396,931,174.98x = 547,765,471.82 × 220,715,386.80
  4. Step 4: Simplify right side
    396,931,174.98x = 120,900,267,988,435,824
  5. Step 5: Solve for x
    x = 120,900,267,988,435,824/396,931,174.98
  6. Step 6: Final answer
    x = 304,587,484.20

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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.