Home / 396,933,621.50-547,768,851.80-220,717,833.44

Finding the Fourth Proportional to 396,933,621.50, 547,768,851.80 and 220,717,833.44

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Solution

The fourth proportional to 396,933,621.50, 547,768,851.80 and 220,717,833.44 is: 304,590,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,933,621.50 : 547,768,851.80 = 220,717,833.44 : x
  2. Step 2: Convert to fraction form
    396,933,621.50/547,768,851.80 = 220,717,833.44/x
  3. Step 3: Cross multiply
    396,933,621.50x = 547,768,851.80 × 220,717,833.44
  4. Step 4: Simplify right side
    396,933,621.50x = 120,902,354,195,478,272
  5. Step 5: Solve for x
    x = 120,902,354,195,478,272/396,933,621.50
  6. Step 6: Final answer
    x = 304,590,862.67

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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.