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Finding the Third Proportional to 861,317,476 and 1,889,387,872

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Solution

The third proportional to 861,317,476 and 1,889,387,872 is: 4,144,565,308.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,317,476 : 1,889,387,872 = 1,889,387,872 : x
  2. Step 2: Convert to fraction form
    861,317,476/1,889,387,872 = 1,889,387,872/x
  3. Step 3: Cross multiply
    861,317,476x = 1,889,387,872 × 1,889,387,872
  4. Step 4: Simplify right side
    861,317,476x = 3,569,786,530,860,688,384
  5. Step 5: Solve for x
    x = 3,569,786,530,860,688,384/861,317,476
  6. Step 6: Final answer
    x = 4,144,565,308.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.