Home / 398,556,857.58-550,008,699.35-222,344,853.54

Finding the Fourth Proportional to 398,556,857.58, 550,008,699.35 and 222,344,853.54

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Solution

The fourth proportional to 398,556,857.58, 550,008,699.35 and 222,344,853.54 is: 306,836,029.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,556,857.58 : 550,008,699.35 = 222,344,853.54 : x
  2. Step 2: Convert to fraction form
    398,556,857.58/550,008,699.35 = 222,344,853.54/x
  3. Step 3: Cross multiply
    398,556,857.58x = 550,008,699.35 × 222,344,853.54
  4. Step 4: Simplify right side
    398,556,857.58x = 122,291,603,701,589,920
  5. Step 5: Solve for x
    x = 122,291,603,701,589,920/398,556,857.58
  6. Step 6: Final answer
    x = 306,836,029.48

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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.