Home / 18,876,102-28,314,256.68-4,692,678

Finding the Fourth Proportional to 18,876,102, 28,314,256.68 and 4,692,678

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Solution

The fourth proportional to 18,876,102, 28,314,256.68 and 4,692,678 is: 7,039,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876,102 : 28,314,256.68 = 4,692,678 : x
  2. Step 2: Convert to fraction form
    18,876,102/28,314,256.68 = 4,692,678/x
  3. Step 3: Cross multiply
    18,876,102x = 28,314,256.68 × 4,692,678
  4. Step 4: Simplify right side
    18,876,102x = 132,869,689,408,589.03
  5. Step 5: Solve for x
    x = 132,869,689,408,589.03/18,876,102
  6. Step 6: Final answer
    x = 7,039,042.78

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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.