Home / 396,522,412.20-547,215,696.63-237,778,380.24

Finding the Fourth Proportional to 396,522,412.20, 547,215,696.63 and 237,778,380.24

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Solution

The fourth proportional to 396,522,412.20, 547,215,696.63 and 237,778,380.24 is: 328,143,020.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,522,412.20 : 547,215,696.63 = 237,778,380.24 : x
  2. Step 2: Convert to fraction form
    396,522,412.20/547,215,696.63 = 237,778,380.24/x
  3. Step 3: Cross multiply
    396,522,412.20x = 547,215,696.63 × 237,778,380.24
  4. Step 4: Simplify right side
    396,522,412.20x = 130,116,061,986,584,624
  5. Step 5: Solve for x
    x = 130,116,061,986,584,624/396,522,412.20
  6. Step 6: Final answer
    x = 328,143,020.38

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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.