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Finding the Third Proportional to 4,172,009.63 and 8,663,763.38

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Solution

The third proportional to 4,172,009.63 and 8,663,763.38 is: 17,991,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,172,009.63 : 8,663,763.38 = 8,663,763.38 : x
  2. Step 2: Convert to fraction form
    4,172,009.63/8,663,763.38 = 8,663,763.38/x
  3. Step 3: Cross multiply
    4,172,009.63x = 8,663,763.38 × 8,663,763.38
  4. Step 4: Simplify right side
    4,172,009.63x = 75,060,795,817,991.39
  5. Step 5: Solve for x
    x = 75,060,795,817,991.39/4,172,009.63
  6. Step 6: Final answer
    x = 17,991,520.29

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.