Home / 358,930,830.80-538,396,246.20-222,172,763.60

Finding the Fourth Proportional to 358,930,830.80, 538,396,246.20 and 222,172,763.60

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Solution

The fourth proportional to 358,930,830.80, 538,396,246.20 and 222,172,763.60 is: 333,259,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,930,830.80 : 538,396,246.20 = 222,172,763.60 : x
  2. Step 2: Convert to fraction form
    358,930,830.80/538,396,246.20 = 222,172,763.60/x
  3. Step 3: Cross multiply
    358,930,830.80x = 538,396,246.20 × 222,172,763.60
  4. Step 4: Simplify right side
    358,930,830.80x = 119,616,981,930,120,000
  5. Step 5: Solve for x
    x = 119,616,981,930,120,000/358,930,830.80
  6. Step 6: Final answer
    x = 333,259,145.40

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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.