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Finding the Third Proportional to 18,556,784 and 39,987,484

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Solution

The third proportional to 18,556,784 and 39,987,484 is: 86,167,887.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,556,784 : 39,987,484 = 39,987,484 : x
  2. Step 2: Convert to fraction form
    18,556,784/39,987,484 = 39,987,484/x
  3. Step 3: Cross multiply
    18,556,784x = 39,987,484 × 39,987,484
  4. Step 4: Simplify right side
    18,556,784x = 1,598,998,876,650,256
  5. Step 5: Solve for x
    x = 1,598,998,876,650,256/18,556,784
  6. Step 6: Final answer
    x = 86,167,887.53

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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.