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Finding the Third Proportional to 381,460,347 and 823,902,990

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Solution

The third proportional to 381,460,347 and 823,902,990 is: 1,779,519,528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,460,347 : 823,902,990 = 823,902,990 : x
  2. Step 2: Convert to fraction form
    381,460,347/823,902,990 = 823,902,990/x
  3. Step 3: Cross multiply
    381,460,347x = 823,902,990 × 823,902,990
  4. Step 4: Simplify right side
    381,460,347x = 678,816,136,930,940,160
  5. Step 5: Solve for x
    x = 678,816,136,930,940,160/381,460,347
  6. Step 6: Final answer
    x = 1,779,519,528.75

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.