Home / 396,522,399.80-547,215,679.47-237,778,367.78

Finding the Fourth Proportional to 396,522,399.80, 547,215,679.47 and 237,778,367.78

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Solution

The fourth proportional to 396,522,399.80, 547,215,679.47 and 237,778,367.78 is: 328,143,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,522,399.80 : 547,215,679.47 = 237,778,367.78 : x
  2. Step 2: Convert to fraction form
    396,522,399.80/547,215,679.47 = 237,778,367.78/x
  3. Step 3: Cross multiply
    396,522,399.80x = 547,215,679.47 × 237,778,367.78
  4. Step 4: Simplify right side
    396,522,399.80x = 130,116,051,089,368,304
  5. Step 5: Solve for x
    x = 130,116,051,089,368,304/396,522,399.80
  6. Step 6: Final answer
    x = 328,143,003.16

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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.