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Finding the Third Proportional to 3,315,390 and 7,247,121

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Solution

The third proportional to 3,315,390 and 7,247,121 is: 15,841,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315,390 : 7,247,121 = 7,247,121 : x
  2. Step 2: Convert to fraction form
    3,315,390/7,247,121 = 7,247,121/x
  3. Step 3: Cross multiply
    3,315,390x = 7,247,121 × 7,247,121
  4. Step 4: Simplify right side
    3,315,390x = 52,520,762,788,641
  5. Step 5: Solve for x
    x = 52,520,762,788,641/3,315,390
  6. Step 6: Final answer
    x = 15,841,503.65

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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.