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Finding the Fourth Proportional to 18,663,137, 27,994,705.86 and 4,479,713

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Solution

The fourth proportional to 18,663,137, 27,994,705.86 and 4,479,713 is: 6,719,569.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663,137 : 27,994,705.86 = 4,479,713 : x
  2. Step 2: Convert to fraction form
    18,663,137/27,994,705.86 = 4,479,713/x
  3. Step 3: Cross multiply
    18,663,137x = 27,994,705.86 × 4,479,713
  4. Step 4: Simplify right side
    18,663,137x = 125,408,247,772,218.17
  5. Step 5: Solve for x
    x = 125,408,247,772,218.17/18,663,137
  6. Step 6: Final answer
    x = 6,719,569.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.