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Finding the Third Proportional to 18,993,740 and 29,428,892

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Solution

The third proportional to 18,993,740 and 29,428,892 is: 45,597,111.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993,740 : 29,428,892 = 29,428,892 : x
  2. Step 2: Convert to fraction form
    18,993,740/29,428,892 = 29,428,892/x
  3. Step 3: Cross multiply
    18,993,740x = 29,428,892 × 29,428,892
  4. Step 4: Simplify right side
    18,993,740x = 866,059,684,347,664
  5. Step 5: Solve for x
    x = 866,059,684,347,664/18,993,740
  6. Step 6: Final answer
    x = 45,597,111.70

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.