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Finding the Third Proportional to 18,814,888 and 39,890,592

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Solution

The third proportional to 18,814,888 and 39,890,592 is: 84,574,477.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814,888 : 39,890,592 = 39,890,592 : x
  2. Step 2: Convert to fraction form
    18,814,888/39,890,592 = 39,890,592/x
  3. Step 3: Cross multiply
    18,814,888x = 39,890,592 × 39,890,592
  4. Step 4: Simplify right side
    18,814,888x = 1,591,259,330,110,464
  5. Step 5: Solve for x
    x = 1,591,259,330,110,464/18,814,888
  6. Step 6: Final answer
    x = 84,574,477.94

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.