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Finding the Third Proportional to 18,480,911 and 28,729,400

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Solution

The third proportional to 18,480,911 and 28,729,400 is: 44,661,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480,911 : 28,729,400 = 28,729,400 : x
  2. Step 2: Convert to fraction form
    18,480,911/28,729,400 = 28,729,400/x
  3. Step 3: Cross multiply
    18,480,911x = 28,729,400 × 28,729,400
  4. Step 4: Simplify right side
    18,480,911x = 825,378,424,360,000
  5. Step 5: Solve for x
    x = 825,378,424,360,000/18,480,911
  6. Step 6: Final answer
    x = 44,661,133.01

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.