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Finding the Third Proportional to 3,990,768.75 and 9,046,900.13

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Solution

The third proportional to 3,990,768.75 and 9,046,900.13 is: 20,508,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,768.75 : 9,046,900.13 = 9,046,900.13 : x
  2. Step 2: Convert to fraction form
    3,990,768.75/9,046,900.13 = 9,046,900.13/x
  3. Step 3: Cross multiply
    3,990,768.75x = 9,046,900.13 × 9,046,900.13
  4. Step 4: Simplify right side
    3,990,768.75x = 81,846,401,871,725.02
  5. Step 5: Solve for x
    x = 81,846,401,871,725.02/3,990,768.75
  6. Step 6: Final answer
    x = 20,508,931.24

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Why These Related Problems?

These problems maintain the same ratio (2.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.