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Finding the Third Proportional to 1,980,821 and 4,340,239

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Solution

The third proportional to 1,980,821 and 4,340,239 is: 9,510,033.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,821 : 4,340,239 = 4,340,239 : x
  2. Step 2: Convert to fraction form
    1,980,821/4,340,239 = 4,340,239/x
  3. Step 3: Cross multiply
    1,980,821x = 4,340,239 × 4,340,239
  4. Step 4: Simplify right side
    1,980,821x = 18,837,674,577,121
  5. Step 5: Solve for x
    x = 18,837,674,577,121/1,980,821
  6. Step 6: Final answer
    x = 9,510,033.76

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.