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Finding the Fourth Proportional to 444,891,921.60, 667,337,882.40 and 426,752,068.80

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Solution

The fourth proportional to 444,891,921.60, 667,337,882.40 and 426,752,068.80 is: 640,128,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,891,921.60 : 667,337,882.40 = 426,752,068.80 : x
  2. Step 2: Convert to fraction form
    444,891,921.60/667,337,882.40 = 426,752,068.80/x
  3. Step 3: Cross multiply
    444,891,921.60x = 667,337,882.40 × 426,752,068.80
  4. Step 4: Simplify right side
    444,891,921.60x = 284,787,821,902,811,104
  5. Step 5: Solve for x
    x = 284,787,821,902,811,104/444,891,921.60
  6. Step 6: Final answer
    x = 640,128,103.20

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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.