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Finding the Third Proportional to 17,992,400 and 39,179,440

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Solution

The third proportional to 17,992,400 and 39,179,440 is: 85,315,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992,400 : 39,179,440 = 39,179,440 : x
  2. Step 2: Convert to fraction form
    17,992,400/39,179,440 = 39,179,440/x
  3. Step 3: Cross multiply
    17,992,400x = 39,179,440 × 39,179,440
  4. Step 4: Simplify right side
    17,992,400x = 1,535,028,518,713,600
  5. Step 5: Solve for x
    x = 1,535,028,518,713,600/17,992,400
  6. Step 6: Final answer
    x = 85,315,384.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.