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Finding the Third Proportional to 10,989,868 and 16,811,178

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Solution

The third proportional to 10,989,868 and 16,811,178 is: 25,716,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989,868 : 16,811,178 = 16,811,178 : x
  2. Step 2: Convert to fraction form
    10,989,868/16,811,178 = 16,811,178/x
  3. Step 3: Cross multiply
    10,989,868x = 16,811,178 × 16,811,178
  4. Step 4: Simplify right side
    10,989,868x = 282,615,705,747,684
  5. Step 5: Solve for x
    x = 282,615,705,747,684/10,989,868
  6. Step 6: Final answer
    x = 25,716,023.68

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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.