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Finding the Third Proportional to 13,136,877 and 20,919,507

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Solution

The third proportional to 13,136,877 and 20,919,507 is: 33,312,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,136,877 : 20,919,507 = 20,919,507 : x
  2. Step 2: Convert to fraction form
    13,136,877/20,919,507 = 20,919,507/x
  3. Step 3: Cross multiply
    13,136,877x = 20,919,507 × 20,919,507
  4. Step 4: Simplify right side
    13,136,877x = 437,625,773,123,049
  5. Step 5: Solve for x
    x = 437,625,773,123,049/13,136,877
  6. Step 6: Final answer
    x = 33,312,770.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.