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Finding the Third Proportional to 18,203,332 and 39,108,080

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Solution

The third proportional to 18,203,332 and 39,108,080 is: 84,019,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203,332 : 39,108,080 = 39,108,080 : x
  2. Step 2: Convert to fraction form
    18,203,332/39,108,080 = 39,108,080/x
  3. Step 3: Cross multiply
    18,203,332x = 39,108,080 × 39,108,080
  4. Step 4: Simplify right side
    18,203,332x = 1,529,441,921,286,400
  5. Step 5: Solve for x
    x = 1,529,441,921,286,400/18,203,332
  6. Step 6: Final answer
    x = 84,019,888.30

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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.