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Finding the Third Proportional to 13,980,789 and 18,888,915

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Solution

The third proportional to 13,980,789 and 18,888,915 is: 25,520,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980,789 : 18,888,915 = 18,888,915 : x
  2. Step 2: Convert to fraction form
    13,980,789/18,888,915 = 18,888,915/x
  3. Step 3: Cross multiply
    13,980,789x = 18,888,915 × 18,888,915
  4. Step 4: Simplify right side
    13,980,789x = 356,791,109,877,225
  5. Step 5: Solve for x
    x = 356,791,109,877,225/13,980,789
  6. Step 6: Final answer
    x = 25,520,098.32

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.