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Finding the Third Proportional to 15,132,438 and 21,233,817

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Solution

The third proportional to 15,132,438 and 21,233,817 is: 29,795,263.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132,438 : 21,233,817 = 21,233,817 : x
  2. Step 2: Convert to fraction form
    15,132,438/21,233,817 = 21,233,817/x
  3. Step 3: Cross multiply
    15,132,438x = 21,233,817 × 21,233,817
  4. Step 4: Simplify right side
    15,132,438x = 450,874,984,389,489
  5. Step 5: Solve for x
    x = 450,874,984,389,489/15,132,438
  6. Step 6: Final answer
    x = 29,795,263.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.