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Finding the Third Proportional to 3,235,808 and 7,021,640

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Solution

The third proportional to 3,235,808 and 7,021,640 is: 15,236,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235,808 : 7,021,640 = 7,021,640 : x
  2. Step 2: Convert to fraction form
    3,235,808/7,021,640 = 7,021,640/x
  3. Step 3: Cross multiply
    3,235,808x = 7,021,640 × 7,021,640
  4. Step 4: Simplify right side
    3,235,808x = 49,303,428,289,600
  5. Step 5: Solve for x
    x = 49,303,428,289,600/3,235,808
  6. Step 6: Final answer
    x = 15,236,821.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.