Home / 831,070,144.26-1,246,568,474.79-217,640,788.74

Finding the Fourth Proportional to 831,070,144.26, 1,246,568,474.79 and 217,640,788.74

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Solution

The fourth proportional to 831,070,144.26, 1,246,568,474.79 and 217,640,788.74 is: 326,451,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,070,144.26 : 1,246,568,474.79 = 217,640,788.74 : x
  2. Step 2: Convert to fraction form
    831,070,144.26/1,246,568,474.79 = 217,640,788.74/x
  3. Step 3: Cross multiply
    831,070,144.26x = 1,246,568,474.79 × 217,640,788.74
  4. Step 4: Simplify right side
    831,070,144.26x = 271,304,146,071,714,400
  5. Step 5: Solve for x
    x = 271,304,146,071,714,400/831,070,144.26
  6. Step 6: Final answer
    x = 326,451,561.21

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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.