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Finding the Third Proportional to 18,863,796 and 38,421,276

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Solution

The third proportional to 18,863,796 and 38,421,276 is: 78,255,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863,796 : 38,421,276 = 38,421,276 : x
  2. Step 2: Convert to fraction form
    18,863,796/38,421,276 = 38,421,276/x
  3. Step 3: Cross multiply
    18,863,796x = 38,421,276 × 38,421,276
  4. Step 4: Simplify right side
    18,863,796x = 1,476,194,449,468,176
  5. Step 5: Solve for x
    x = 1,476,194,449,468,176/18,863,796
  6. Step 6: Final answer
    x = 78,255,429.05

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.