Home / 398,556,859.08-550,008,701.42-222,344,855.04

Finding the Fourth Proportional to 398,556,859.08, 550,008,701.42 and 222,344,855.04

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Solution

The fourth proportional to 398,556,859.08, 550,008,701.42 and 222,344,855.04 is: 306,836,031.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,556,859.08 : 550,008,701.42 = 222,344,855.04 : x
  2. Step 2: Convert to fraction form
    398,556,859.08/550,008,701.42 = 222,344,855.04/x
  3. Step 3: Cross multiply
    398,556,859.08x = 550,008,701.42 × 222,344,855.04
  4. Step 4: Simplify right side
    398,556,859.08x = 122,291,604,986,856,800
  5. Step 5: Solve for x
    x = 122,291,604,986,856,800/398,556,859.08
  6. Step 6: Final answer
    x = 306,836,031.55

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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.