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Finding the Third Proportional to 408,045,982 and 885,370,279

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Solution

The third proportional to 408,045,982 and 885,370,279 is: 1,921,059,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,045,982 : 885,370,279 = 885,370,279 : x
  2. Step 2: Convert to fraction form
    408,045,982/885,370,279 = 885,370,279/x
  3. Step 3: Cross multiply
    408,045,982x = 885,370,279 × 885,370,279
  4. Step 4: Simplify right side
    408,045,982x = 783,880,530,936,537,856
  5. Step 5: Solve for x
    x = 783,880,530,936,537,856/408,045,982
  6. Step 6: Final answer
    x = 1,921,059,305.85

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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.