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Finding the Third Proportional to 39,388,052 and 81,907,240

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Solution

The third proportional to 39,388,052 and 81,907,240 is: 170,325,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,388,052 : 81,907,240 = 81,907,240 : x
  2. Step 2: Convert to fraction form
    39,388,052/81,907,240 = 81,907,240/x
  3. Step 3: Cross multiply
    39,388,052x = 81,907,240 × 81,907,240
  4. Step 4: Simplify right side
    39,388,052x = 6,708,795,964,417,600
  5. Step 5: Solve for x
    x = 6,708,795,964,417,600/39,388,052
  6. Step 6: Final answer
    x = 170,325,660.29

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.