Home / 18,898,339.10-28,352,757.45-8,120,803.10

Finding the Fourth Proportional to 18,898,339.10, 28,352,757.45 and 8,120,803.10

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Solution

The fourth proportional to 18,898,339.10, 28,352,757.45 and 8,120,803.10 is: 12,183,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,339.10 : 28,352,757.45 = 8,120,803.10 : x
  2. Step 2: Convert to fraction form
    18,898,339.10/28,352,757.45 = 8,120,803.10/x
  3. Step 3: Cross multiply
    18,898,339.10x = 28,352,757.45 × 8,120,803.10
  4. Step 4: Simplify right side
    18,898,339.10x = 230,247,160,593,508.09
  5. Step 5: Solve for x
    x = 230,247,160,593,508.09/18,898,339.10
  6. Step 6: Final answer
    x = 12,183,460.11

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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.