Home / 279,770,540.72-386,085,858.36-154,327,538.48

Finding the Fourth Proportional to 279,770,540.72, 386,085,858.36 and 154,327,538.48

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Solution

The fourth proportional to 279,770,540.72, 386,085,858.36 and 154,327,538.48 is: 212,973,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,770,540.72 : 386,085,858.36 = 154,327,538.48 : x
  2. Step 2: Convert to fraction form
    279,770,540.72/386,085,858.36 = 154,327,538.48/x
  3. Step 3: Cross multiply
    279,770,540.72x = 386,085,858.36 × 154,327,538.48
  4. Step 4: Simplify right side
    279,770,540.72x = 59,583,680,162,636,728
  5. Step 5: Solve for x
    x = 59,583,680,162,636,728/279,770,540.72
  6. Step 6: Final answer
    x = 212,973,388.87

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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.