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Finding the Third Proportional to 21,388,989 and 46,187,601

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Solution

The third proportional to 21,388,989 and 46,187,601 is: 99,737,976.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388,989 : 46,187,601 = 46,187,601 : x
  2. Step 2: Convert to fraction form
    21,388,989/46,187,601 = 46,187,601/x
  3. Step 3: Cross multiply
    21,388,989x = 46,187,601 × 46,187,601
  4. Step 4: Simplify right side
    21,388,989x = 2,133,294,486,135,201
  5. Step 5: Solve for x
    x = 2,133,294,486,135,201/21,388,989
  6. Step 6: Final answer
    x = 99,737,976.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.