Home / 396,300,131.34-546,879,180.54-220,099,471.75

Finding the Fourth Proportional to 396,300,131.34, 546,879,180.54 and 220,099,471.75

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Solution

The fourth proportional to 396,300,131.34, 546,879,180.54 and 220,099,471.75 is: 303,728,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,300,131.34 : 546,879,180.54 = 220,099,471.75 : x
  2. Step 2: Convert to fraction form
    396,300,131.34/546,879,180.54 = 220,099,471.75/x
  3. Step 3: Cross multiply
    396,300,131.34x = 546,879,180.54 × 220,099,471.75
  4. Step 4: Simplify right side
    396,300,131.34x = 120,367,818,748,203,280
  5. Step 5: Solve for x
    x = 120,367,818,748,203,280/396,300,131.34
  6. Step 6: Final answer
    x = 303,728,939.84

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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.