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Finding the Third Proportional to 9,136,940 and 20,316,315

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Solution

The third proportional to 9,136,940 and 20,316,315 is: 45,174,057.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,136,940 : 20,316,315 = 20,316,315 : x
  2. Step 2: Convert to fraction form
    9,136,940/20,316,315 = 20,316,315/x
  3. Step 3: Cross multiply
    9,136,940x = 20,316,315 × 20,316,315
  4. Step 4: Simplify right side
    9,136,940x = 412,752,655,179,225
  5. Step 5: Solve for x
    x = 412,752,655,179,225/9,136,940
  6. Step 6: Final answer
    x = 45,174,057.75

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.