Home / 285,146,540.38-393,502,516.95-154,766,375.26

Finding the Fourth Proportional to 285,146,540.38, 393,502,516.95 and 154,766,375.26

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Solution

The fourth proportional to 285,146,540.38, 393,502,516.95 and 154,766,375.26 is: 213,577,755.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,146,540.38 : 393,502,516.95 = 154,766,375.26 : x
  2. Step 2: Convert to fraction form
    285,146,540.38/393,502,516.95 = 154,766,375.26/x
  3. Step 3: Cross multiply
    285,146,540.38x = 393,502,516.95 × 154,766,375.26
  4. Step 4: Simplify right side
    285,146,540.38x = 60,900,958,204,038,208
  5. Step 5: Solve for x
    x = 60,900,958,204,038,208/285,146,540.38
  6. Step 6: Final answer
    x = 213,577,755.92

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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.