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Finding the Third Proportional to 55,149,885 and 87,286,972.50

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Solution

The third proportional to 55,149,885 and 87,286,972.50 is: 138,151,069.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,149,885 : 87,286,972.50 = 87,286,972.50 : x
  2. Step 2: Convert to fraction form
    55,149,885/87,286,972.50 = 87,286,972.50/x
  3. Step 3: Cross multiply
    55,149,885x = 87,286,972.50 × 87,286,972.50
  4. Step 4: Simplify right side
    55,149,885x = 7,619,015,568,215,756
  5. Step 5: Solve for x
    x = 7,619,015,568,215,756/55,149,885
  6. Step 6: Final answer
    x = 138,151,069.00

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.