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Finding the Third Proportional to 31,195,869 and 67,324,113

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Solution

The third proportional to 31,195,869 and 67,324,113 is: 145,292,833.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195,869 : 67,324,113 = 67,324,113 : x
  2. Step 2: Convert to fraction form
    31,195,869/67,324,113 = 67,324,113/x
  3. Step 3: Cross multiply
    31,195,869x = 67,324,113 × 67,324,113
  4. Step 4: Simplify right side
    31,195,869x = 4,532,536,191,236,769
  5. Step 5: Solve for x
    x = 4,532,536,191,236,769/31,195,869
  6. Step 6: Final answer
    x = 145,292,833.20

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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.