Home / 20,918,705.44-31,360,087.14-7,270,078.57

Finding the Fourth Proportional to 20,918,705.44, 31,360,087.14 and 7,270,078.57

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Solution

The fourth proportional to 20,918,705.44, 31,360,087.14 and 7,270,078.57 is: 10,898,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,918,705.44 : 31,360,087.14 = 7,270,078.57 : x
  2. Step 2: Convert to fraction form
    20,918,705.44/31,360,087.14 = 7,270,078.57/x
  3. Step 3: Cross multiply
    20,918,705.44x = 31,360,087.14 × 7,270,078.57
  4. Step 4: Simplify right side
    20,918,705.44x = 227,990,297,481,783.91
  5. Step 5: Solve for x
    x = 227,990,297,481,783.91/20,918,705.44
  6. Step 6: Final answer
    x = 10,898,872.22

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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.