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Finding the Third Proportional to 9,418,830 and 20,343,396

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Solution

The third proportional to 9,418,830 and 20,343,396 is: 43,938,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418,830 : 20,343,396 = 20,343,396 : x
  2. Step 2: Convert to fraction form
    9,418,830/20,343,396 = 20,343,396/x
  3. Step 3: Cross multiply
    9,418,830x = 20,343,396 × 20,343,396
  4. Step 4: Simplify right side
    9,418,830x = 413,853,760,812,816
  5. Step 5: Solve for x
    x = 413,853,760,812,816/9,418,830
  6. Step 6: Final answer
    x = 43,938,977.65

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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.