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Finding the Third Proportional to 4,151,829 and 9,121,578

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Solution

The third proportional to 4,151,829 and 9,121,578 is: 20,040,128.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,151,829 : 9,121,578 = 9,121,578 : x
  2. Step 2: Convert to fraction form
    4,151,829/9,121,578 = 9,121,578/x
  3. Step 3: Cross multiply
    4,151,829x = 9,121,578 × 9,121,578
  4. Step 4: Simplify right side
    4,151,829x = 83,203,185,210,084
  5. Step 5: Solve for x
    x = 83,203,185,210,084/4,151,829
  6. Step 6: Final answer
    x = 20,040,128.15

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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.