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Finding the Third Proportional to 20,213,156 and 31,100,438

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Solution

The third proportional to 20,213,156 and 31,100,438 is: 47,851,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,156 : 31,100,438 = 31,100,438 : x
  2. Step 2: Convert to fraction form
    20,213,156/31,100,438 = 31,100,438/x
  3. Step 3: Cross multiply
    20,213,156x = 31,100,438 × 31,100,438
  4. Step 4: Simplify right side
    20,213,156x = 967,237,243,791,844
  5. Step 5: Solve for x
    x = 967,237,243,791,844/20,213,156
  6. Step 6: Final answer
    x = 47,851,866.57

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.