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Finding the Third Proportional to 668,818,611 and 1,398,620,079

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Solution

The third proportional to 668,818,611 and 1,398,620,079 is: 2,924,766,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,818,611 : 1,398,620,079 = 1,398,620,079 : x
  2. Step 2: Convert to fraction form
    668,818,611/1,398,620,079 = 1,398,620,079/x
  3. Step 3: Cross multiply
    668,818,611x = 1,398,620,079 × 1,398,620,079
  4. Step 4: Simplify right side
    668,818,611x = 1,956,138,125,381,966,336
  5. Step 5: Solve for x
    x = 1,956,138,125,381,966,336/668,818,611
  6. Step 6: Final answer
    x = 2,924,766,286.72

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.