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Finding the Third Proportional to 408,045,978 and 885,370,268

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Solution

The third proportional to 408,045,978 and 885,370,268 is: 1,921,059,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,045,978 : 885,370,268 = 885,370,268 : x
  2. Step 2: Convert to fraction form
    408,045,978/885,370,268 = 885,370,268/x
  3. Step 3: Cross multiply
    408,045,978x = 885,370,268 × 885,370,268
  4. Step 4: Simplify right side
    408,045,978x = 783,880,511,458,391,808
  5. Step 5: Solve for x
    x = 783,880,511,458,391,808/408,045,978
  6. Step 6: Final answer
    x = 1,921,059,276.95

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.