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Finding the Third Proportional to 7,639,040 and 11,047,385

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Solution

The third proportional to 7,639,040 and 11,047,385 is: 15,976,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639,040 : 11,047,385 = 11,047,385 : x
  2. Step 2: Convert to fraction form
    7,639,040/11,047,385 = 11,047,385/x
  3. Step 3: Cross multiply
    7,639,040x = 11,047,385 × 11,047,385
  4. Step 4: Simplify right side
    7,639,040x = 122,044,715,338,225
  5. Step 5: Solve for x
    x = 122,044,715,338,225/7,639,040
  6. Step 6: Final answer
    x = 15,976,446.69

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.