Home / 281,396,616.60-388,327,036.36-157,638,164.88

Finding the Fourth Proportional to 281,396,616.60, 388,327,036.36 and 157,638,164.88

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Solution

The fourth proportional to 281,396,616.60, 388,327,036.36 and 157,638,164.88 is: 217,540,502.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,396,616.60 : 388,327,036.36 = 157,638,164.88 : x
  2. Step 2: Convert to fraction form
    281,396,616.60/388,327,036.36 = 157,638,164.88/x
  3. Step 3: Cross multiply
    281,396,616.60x = 388,327,036.36 × 157,638,164.88
  4. Step 4: Simplify right side
    281,396,616.60x = 61,215,161,385,079,432
  5. Step 5: Solve for x
    x = 61,215,161,385,079,432/281,396,616.60
  6. Step 6: Final answer
    x = 217,540,502.53

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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.