Home / 20,976,863.42-31,467,140.42-6,407,072.16

Finding the Fourth Proportional to 20,976,863.42, 31,467,140.42 and 6,407,072.16

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Solution

The fourth proportional to 20,976,863.42, 31,467,140.42 and 6,407,072.16 is: 9,611,171.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976,863.42 : 31,467,140.42 = 6,407,072.16 : x
  2. Step 2: Convert to fraction form
    20,976,863.42/31,467,140.42 = 6,407,072.16/x
  3. Step 3: Cross multiply
    20,976,863.42x = 31,467,140.42 × 6,407,072.16
  4. Step 4: Simplify right side
    20,976,863.42x = 201,612,239,339,792.72
  5. Step 5: Solve for x
    x = 201,612,239,339,792.72/20,976,863.42
  6. Step 6: Final answer
    x = 9,611,171.86

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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.