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Finding the Fourth Proportional to 229,907,999.80, 344,861,999.70 and 204,965,702.20

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Solution

The fourth proportional to 229,907,999.80, 344,861,999.70 and 204,965,702.20 is: 307,448,553.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,907,999.80 : 344,861,999.70 = 204,965,702.20 : x
  2. Step 2: Convert to fraction form
    229,907,999.80/344,861,999.70 = 204,965,702.20/x
  3. Step 3: Cross multiply
    229,907,999.80x = 344,861,999.70 × 204,965,702.20
  4. Step 4: Simplify right side
    229,907,999.80x = 70,684,881,930,606,680
  5. Step 5: Solve for x
    x = 70,684,881,930,606,680/229,907,999.80
  6. Step 6: Final answer
    x = 307,448,553.30

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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.