Home / 396,751,389.92-547,523,466.24-218,142,824.96

Finding the Fourth Proportional to 396,751,389.92, 547,523,466.24 and 218,142,824.96

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Solution

The fourth proportional to 396,751,389.92, 547,523,466.24 and 218,142,824.96 is: 301,040,698.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,751,389.92 : 547,523,466.24 = 218,142,824.96 : x
  2. Step 2: Convert to fraction form
    396,751,389.92/547,523,466.24 = 218,142,824.96/x
  3. Step 3: Cross multiply
    396,751,389.92x = 547,523,466.24 × 218,142,824.96
  4. Step 4: Simplify right side
    396,751,389.92x = 119,438,315,657,484,800
  5. Step 5: Solve for x
    x = 119,438,315,657,484,800/396,751,389.92
  6. Step 6: Final answer
    x = 301,040,698.76

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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.