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Finding the Third Proportional to 3,128,700 and 7,534,731

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Solution

The third proportional to 3,128,700 and 7,534,731 is: 18,145,610.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,700 : 7,534,731 = 7,534,731 : x
  2. Step 2: Convert to fraction form
    3,128,700/7,534,731 = 7,534,731/x
  3. Step 3: Cross multiply
    3,128,700x = 7,534,731 × 7,534,731
  4. Step 4: Simplify right side
    3,128,700x = 56,772,171,242,361
  5. Step 5: Solve for x
    x = 56,772,171,242,361/3,128,700
  6. Step 6: Final answer
    x = 18,145,610.39

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.