Home / 20,431,756.92-28,196,020.27-11,264,728.44

Finding the Fourth Proportional to 20,431,756.92, 28,196,020.27 and 11,264,728.44

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Solution

The fourth proportional to 20,431,756.92, 28,196,020.27 and 11,264,728.44 is: 15,545,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431,756.92 : 28,196,020.27 = 11,264,728.44 : x
  2. Step 2: Convert to fraction form
    20,431,756.92/28,196,020.27 = 11,264,728.44/x
  3. Step 3: Cross multiply
    20,431,756.92x = 28,196,020.27 × 11,264,728.44
  4. Step 4: Simplify right side
    20,431,756.92x = 317,620,511,430,285.44
  5. Step 5: Solve for x
    x = 317,620,511,430,285.44/20,431,756.92
  6. Step 6: Final answer
    x = 15,545,433.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.