Home / 13,828,822.80-20,743,234.20-13,120,234.80

Finding the Fourth Proportional to 13,828,822.80, 20,743,234.20 and 13,120,234.80

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Solution

The fourth proportional to 13,828,822.80, 20,743,234.20 and 13,120,234.80 is: 19,680,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828,822.80 : 20,743,234.20 = 13,120,234.80 : x
  2. Step 2: Convert to fraction form
    13,828,822.80/20,743,234.20 = 13,120,234.80/x
  3. Step 3: Cross multiply
    13,828,822.80x = 20,743,234.20 × 13,120,234.80
  4. Step 4: Simplify right side
    13,828,822.80x = 272,156,103,215,390.16
  5. Step 5: Solve for x
    x = 272,156,103,215,390.16/13,828,822.80
  6. Step 6: Final answer
    x = 19,680,352.20

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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.