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Finding the Third Proportional to 7,791,128 and 11,643,074

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Solution

The third proportional to 7,791,128 and 11,643,074 is: 17,399,428.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791,128 : 11,643,074 = 11,643,074 : x
  2. Step 2: Convert to fraction form
    7,791,128/11,643,074 = 11,643,074/x
  3. Step 3: Cross multiply
    7,791,128x = 11,643,074 × 11,643,074
  4. Step 4: Simplify right side
    7,791,128x = 135,561,172,169,476
  5. Step 5: Solve for x
    x = 135,561,172,169,476/7,791,128
  6. Step 6: Final answer
    x = 17,399,428.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.