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Finding the Third Proportional to 4,130,379 and 8,947,213

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Solution

The third proportional to 4,130,379 and 8,947,213 is: 19,381,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130,379 : 8,947,213 = 8,947,213 : x
  2. Step 2: Convert to fraction form
    4,130,379/8,947,213 = 8,947,213/x
  3. Step 3: Cross multiply
    4,130,379x = 8,947,213 × 8,947,213
  4. Step 4: Simplify right side
    4,130,379x = 80,052,620,467,369
  5. Step 5: Solve for x
    x = 80,052,620,467,369/4,130,379
  6. Step 6: Final answer
    x = 19,381,422.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.