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Finding the Third Proportional to 20,213,090 and 31,100,330

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Solution

The third proportional to 20,213,090 and 31,100,330 is: 47,851,690.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,090 : 31,100,330 = 31,100,330 : x
  2. Step 2: Convert to fraction form
    20,213,090/31,100,330 = 31,100,330/x
  3. Step 3: Cross multiply
    20,213,090x = 31,100,330 × 31,100,330
  4. Step 4: Simplify right side
    20,213,090x = 967,230,526,108,900
  5. Step 5: Solve for x
    x = 967,230,526,108,900/20,213,090
  6. Step 6: Final answer
    x = 47,851,690.47

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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.