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Finding the Third Proportional to 3,958,920 and 8,477,712

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Solution

The third proportional to 3,958,920 and 8,477,712 is: 18,154,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958,920 : 8,477,712 = 8,477,712 : x
  2. Step 2: Convert to fraction form
    3,958,920/8,477,712 = 8,477,712/x
  3. Step 3: Cross multiply
    3,958,920x = 8,477,712 × 8,477,712
  4. Step 4: Simplify right side
    3,958,920x = 71,871,600,754,944
  5. Step 5: Solve for x
    x = 71,871,600,754,944/3,958,920
  6. Step 6: Final answer
    x = 18,154,345.32

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.