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Finding the Fourth Proportional to 221,229,665.40, 331,844,498.10 and 221,229,665.40

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Solution

The fourth proportional to 221,229,665.40, 331,844,498.10 and 221,229,665.40 is: 331,844,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,229,665.40 : 331,844,498.10 = 221,229,665.40 : x
  2. Step 2: Convert to fraction form
    221,229,665.40/331,844,498.10 = 221,229,665.40/x
  3. Step 3: Cross multiply
    221,229,665.40x = 331,844,498.10 × 221,229,665.40
  4. Step 4: Simplify right side
    221,229,665.40x = 73,413,847,279,493,936
  5. Step 5: Solve for x
    x = 73,413,847,279,493,936/221,229,665.40
  6. Step 6: Final answer
    x = 331,844,498.10

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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.