Home / 865,301,725.96-1,297,954,212.78-210,253,306.64

Finding the Fourth Proportional to 865,301,725.96, 1,297,954,212.78 and 210,253,306.64

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Solution

The fourth proportional to 865,301,725.96, 1,297,954,212.78 and 210,253,306.64 is: 315,380,354.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,301,725.96 : 1,297,954,212.78 = 210,253,306.64 : x
  2. Step 2: Convert to fraction form
    865,301,725.96/1,297,954,212.78 = 210,253,306.64/x
  3. Step 3: Cross multiply
    865,301,725.96x = 1,297,954,212.78 × 210,253,306.64
  4. Step 4: Simplify right side
    865,301,725.96x = 272,899,165,098,622,304
  5. Step 5: Solve for x
    x = 272,899,165,098,622,304/865,301,725.96
  6. Step 6: Final answer
    x = 315,380,354.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.