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Finding the Third Proportional to 7,226,256 and 10,639,780

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Solution

The third proportional to 7,226,256 and 10,639,780 is: 15,665,777.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226,256 : 10,639,780 = 10,639,780 : x
  2. Step 2: Convert to fraction form
    7,226,256/10,639,780 = 10,639,780/x
  3. Step 3: Cross multiply
    7,226,256x = 10,639,780 × 10,639,780
  4. Step 4: Simplify right side
    7,226,256x = 113,204,918,448,400
  5. Step 5: Solve for x
    x = 113,204,918,448,400/7,226,256
  6. Step 6: Final answer
    x = 15,665,777.47

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.