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Finding the Third Proportional to 20,716,350 and 31,362,309

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Solution

The third proportional to 20,716,350 and 31,362,309 is: 47,479,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716,350 : 31,362,309 = 31,362,309 : x
  2. Step 2: Convert to fraction form
    20,716,350/31,362,309 = 31,362,309/x
  3. Step 3: Cross multiply
    20,716,350x = 31,362,309 × 31,362,309
  4. Step 4: Simplify right side
    20,716,350x = 983,594,425,811,481
  5. Step 5: Solve for x
    x = 983,594,425,811,481/20,716,350
  6. Step 6: Final answer
    x = 47,479,137.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.