Home / 396,311,889.54-546,911,685.52-220,099,884.90

Finding the Fourth Proportional to 396,311,889.54, 546,911,685.52 and 220,099,884.90

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Solution

The fourth proportional to 396,311,889.54, 546,911,685.52 and 220,099,884.90 is: 303,738,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,311,889.54 : 546,911,685.52 = 220,099,884.90 : x
  2. Step 2: Convert to fraction form
    396,311,889.54/546,911,685.52 = 220,099,884.90/x
  3. Step 3: Cross multiply
    396,311,889.54x = 546,911,685.52 × 220,099,884.90
  4. Step 4: Simplify right side
    396,311,889.54x = 120,375,199,030,821,296
  5. Step 5: Solve for x
    x = 120,375,199,030,821,296/396,311,889.54
  6. Step 6: Final answer
    x = 303,738,550.89

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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.