Home / 20,515,341.65-30,770,738.15-5,162,635.48

Finding the Fourth Proportional to 20,515,341.65, 30,770,738.15 and 5,162,635.48

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Solution

The fourth proportional to 20,515,341.65, 30,770,738.15 and 5,162,635.48 is: 7,743,380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,341.65 : 30,770,738.15 = 5,162,635.48 : x
  2. Step 2: Convert to fraction form
    20,515,341.65/30,770,738.15 = 5,162,635.48/x
  3. Step 3: Cross multiply
    20,515,341.65x = 30,770,738.15 × 5,162,635.48
  4. Step 4: Simplify right side
    20,515,341.65x = 158,858,104,365,914.66
  5. Step 5: Solve for x
    x = 158,858,104,365,914.66/20,515,341.65
  6. Step 6: Final answer
    x = 7,743,380.89

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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.