Home / 289,656,906.30-434,485,359.45-71,305,514.10

Finding the Fourth Proportional to 289,656,906.30, 434,485,359.45 and 71,305,514.10

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Solution

The fourth proportional to 289,656,906.30, 434,485,359.45 and 71,305,514.10 is: 106,958,271.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,656,906.30 : 434,485,359.45 = 71,305,514.10 : x
  2. Step 2: Convert to fraction form
    289,656,906.30/434,485,359.45 = 71,305,514.10/x
  3. Step 3: Cross multiply
    289,656,906.30x = 434,485,359.45 × 71,305,514.10
  4. Step 4: Simplify right side
    289,656,906.30x = 30,981,201,924,505,540
  5. Step 5: Solve for x
    x = 30,981,201,924,505,540/289,656,906.30
  6. Step 6: Final answer
    x = 106,958,271.15

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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.