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Finding the Third Proportional to 292,716,845 and 639,073,390

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Solution

The third proportional to 292,716,845 and 639,073,390 is: 1,395,255,533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,716,845 : 639,073,390 = 639,073,390 : x
  2. Step 2: Convert to fraction form
    292,716,845/639,073,390 = 639,073,390/x
  3. Step 3: Cross multiply
    292,716,845x = 639,073,390 × 639,073,390
  4. Step 4: Simplify right side
    292,716,845x = 408,414,797,806,092,096
  5. Step 5: Solve for x
    x = 408,414,797,806,092,096/292,716,845
  6. Step 6: Final answer
    x = 1,395,255,533.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.