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Finding the Third Proportional to 18,171,428 and 40,029,976

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Solution

The third proportional to 18,171,428 and 40,029,976 is: 88,182,336.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171,428 : 40,029,976 = 40,029,976 : x
  2. Step 2: Convert to fraction form
    18,171,428/40,029,976 = 40,029,976/x
  3. Step 3: Cross multiply
    18,171,428x = 40,029,976 × 40,029,976
  4. Step 4: Simplify right side
    18,171,428x = 1,602,398,978,560,576
  5. Step 5: Solve for x
    x = 1,602,398,978,560,576/18,171,428
  6. Step 6: Final answer
    x = 88,182,336.50

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.