Home / 207,828,556.40-311,770,828.20-71,555,711.60

Finding the Fourth Proportional to 207,828,556.40, 311,770,828.20 and 71,555,711.60

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Solution

The fourth proportional to 207,828,556.40, 311,770,828.20 and 71,555,711.60 is: 107,343,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,828,556.40 : 311,770,828.20 = 71,555,711.60 : x
  2. Step 2: Convert to fraction form
    207,828,556.40/311,770,828.20 = 71,555,711.60/x
  3. Step 3: Cross multiply
    207,828,556.40x = 311,770,828.20 × 71,555,711.60
  4. Step 4: Simplify right side
    207,828,556.40x = 22,308,983,467,972,344
  5. Step 5: Solve for x
    x = 22,308,983,467,972,344/207,828,556.40
  6. Step 6: Final answer
    x = 107,343,205.64

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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.