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Finding the Third Proportional to 4,040,390 and 8,721,733

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Solution

The third proportional to 4,040,390 and 8,721,733 is: 18,827,050.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040,390 : 8,721,733 = 8,721,733 : x
  2. Step 2: Convert to fraction form
    4,040,390/8,721,733 = 8,721,733/x
  3. Step 3: Cross multiply
    4,040,390x = 8,721,733 × 8,721,733
  4. Step 4: Simplify right side
    4,040,390x = 76,068,626,523,289
  5. Step 5: Solve for x
    x = 76,068,626,523,289/4,040,390
  6. Step 6: Final answer
    x = 18,827,050.49

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.