Home / 268,063,879.38-369,821,778.25-155,012,481.67

Finding the Fourth Proportional to 268,063,879.38, 369,821,778.25 and 155,012,481.67

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Solution

The fourth proportional to 268,063,879.38, 369,821,778.25 and 155,012,481.67 is: 213,855,711.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,063,879.38 : 369,821,778.25 = 155,012,481.67 : x
  2. Step 2: Convert to fraction form
    268,063,879.38/369,821,778.25 = 155,012,481.67/x
  3. Step 3: Cross multiply
    268,063,879.38x = 369,821,778.25 × 155,012,481.67
  4. Step 4: Simplify right side
    268,063,879.38x = 57,326,991,621,425,544
  5. Step 5: Solve for x
    x = 57,326,991,621,425,544/268,063,879.38
  6. Step 6: Final answer
    x = 213,855,711.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.