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Finding the Third Proportional to 21,312,871.88 and 29,694,129.19

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Solution

The third proportional to 21,312,871.88 and 29,694,129.19 is: 41,371,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,871.88 : 29,694,129.19 = 29,694,129.19 : x
  2. Step 2: Convert to fraction form
    21,312,871.88/29,694,129.19 = 29,694,129.19/x
  3. Step 3: Cross multiply
    21,312,871.88x = 29,694,129.19 × 29,694,129.19
  4. Step 4: Simplify right side
    21,312,871.88x = 881,741,308,203,939.38
  5. Step 5: Solve for x
    x = 881,741,308,203,939.38/21,312,871.88
  6. Step 6: Final answer
    x = 41,371,304.32

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.