Home / 18,968,982.54-28,453,494.33-8,878,689.42

Finding the Fourth Proportional to 18,968,982.54, 28,453,494.33 and 8,878,689.42

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Solution

The fourth proportional to 18,968,982.54, 28,453,494.33 and 8,878,689.42 is: 13,318,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,982.54 : 28,453,494.33 = 8,878,689.42 : x
  2. Step 2: Convert to fraction form
    18,968,982.54/28,453,494.33 = 8,878,689.42/x
  3. Step 3: Cross multiply
    18,968,982.54x = 28,453,494.33 × 8,878,689.42
  4. Step 4: Simplify right side
    18,968,982.54x = 252,629,739,069,800.97
  5. Step 5: Solve for x
    x = 252,629,739,069,800.97/18,968,982.54
  6. Step 6: Final answer
    x = 13,318,043.73

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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.