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Finding the Third Proportional to 7,457,390 and 11,515,767

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Solution

The third proportional to 7,457,390 and 11,515,767 is: 17,782,748.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457,390 : 11,515,767 = 11,515,767 : x
  2. Step 2: Convert to fraction form
    7,457,390/11,515,767 = 11,515,767/x
  3. Step 3: Cross multiply
    7,457,390x = 11,515,767 × 11,515,767
  4. Step 4: Simplify right side
    7,457,390x = 132,612,889,598,289
  5. Step 5: Solve for x
    x = 132,612,889,598,289/7,457,390
  6. Step 6: Final answer
    x = 17,782,748.33

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.