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Finding the Third Proportional to 418,927,981 and 888,921,400

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Solution

The third proportional to 418,927,981 and 888,921,400 is: 1,886,198,323.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,927,981 : 888,921,400 = 888,921,400 : x
  2. Step 2: Convert to fraction form
    418,927,981/888,921,400 = 888,921,400/x
  3. Step 3: Cross multiply
    418,927,981x = 888,921,400 × 888,921,400
  4. Step 4: Simplify right side
    418,927,981x = 790,181,255,377,959,936
  5. Step 5: Solve for x
    x = 790,181,255,377,959,936/418,927,981
  6. Step 6: Final answer
    x = 1,886,198,323.38

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.