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Finding the Third Proportional to 12,377,196 and 18,921,546

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Solution

The third proportional to 12,377,196 and 18,921,546 is: 28,926,172.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,377,196 : 18,921,546 = 18,921,546 : x
  2. Step 2: Convert to fraction form
    12,377,196/18,921,546 = 18,921,546/x
  3. Step 3: Cross multiply
    12,377,196x = 18,921,546 × 18,921,546
  4. Step 4: Simplify right side
    12,377,196x = 358,024,903,030,116
  5. Step 5: Solve for x
    x = 358,024,903,030,116/12,377,196
  6. Step 6: Final answer
    x = 28,926,172.21

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.