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Finding the Third Proportional to 15,507,999 and 25,756,839

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Solution

The third proportional to 15,507,999 and 25,756,839 is: 42,778,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,999 : 25,756,839 = 25,756,839 : x
  2. Step 2: Convert to fraction form
    15,507,999/25,756,839 = 25,756,839/x
  3. Step 3: Cross multiply
    15,507,999x = 25,756,839 × 25,756,839
  4. Step 4: Simplify right side
    15,507,999x = 663,414,755,271,921
  5. Step 5: Solve for x
    x = 663,414,755,271,921/15,507,999
  6. Step 6: Final answer
    x = 42,778,875.29

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.