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Finding the Third Proportional to 31,456,818 and 42,500,121.75

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Solution

The third proportional to 31,456,818 and 42,500,121.75 is: 57,420,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,456,818 : 42,500,121.75 = 42,500,121.75 : x
  2. Step 2: Convert to fraction form
    31,456,818/42,500,121.75 = 42,500,121.75/x
  3. Step 3: Cross multiply
    31,456,818x = 42,500,121.75 × 42,500,121.75
  4. Step 4: Simplify right side
    31,456,818x = 1,806,260,348,764,823
  5. Step 5: Solve for x
    x = 1,806,260,348,764,823/31,456,818
  6. Step 6: Final answer
    x = 57,420,313.42

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.