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Finding the Third Proportional to 8,590,429.69 and 18,692,142.19

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Solution

The third proportional to 8,590,429.69 and 18,692,142.19 is: 40,672,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590,429.69 : 18,692,142.19 = 18,692,142.19 : x
  2. Step 2: Convert to fraction form
    8,590,429.69/18,692,142.19 = 18,692,142.19/x
  3. Step 3: Cross multiply
    8,590,429.69x = 18,692,142.19 × 18,692,142.19
  4. Step 4: Simplify right side
    8,590,429.69x = 349,396,179,557,717.31
  5. Step 5: Solve for x
    x = 349,396,179,557,717.31/8,590,429.69
  6. Step 6: Final answer
    x = 40,672,724.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.