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Finding the Third Proportional to 18,301,088 and 39,438,716

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Solution

The third proportional to 18,301,088 and 39,438,716 is: 84,990,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,301,088 : 39,438,716 = 39,438,716 : x
  2. Step 2: Convert to fraction form
    18,301,088/39,438,716 = 39,438,716/x
  3. Step 3: Cross multiply
    18,301,088x = 39,438,716 × 39,438,716
  4. Step 4: Simplify right side
    18,301,088x = 1,555,412,319,728,656
  5. Step 5: Solve for x
    x = 1,555,412,319,728,656/18,301,088
  6. Step 6: Final answer
    x = 84,990,155.76

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.