Home / 18,145,812.80-27,218,719.20-8,068,116.80

Finding the Fourth Proportional to 18,145,812.80, 27,218,719.20 and 8,068,116.80

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Solution

The fourth proportional to 18,145,812.80, 27,218,719.20 and 8,068,116.80 is: 12,102,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,812.80 : 27,218,719.20 = 8,068,116.80 : x
  2. Step 2: Convert to fraction form
    18,145,812.80/27,218,719.20 = 8,068,116.80/x
  3. Step 3: Cross multiply
    18,145,812.80x = 27,218,719.20 × 8,068,116.80
  4. Step 4: Simplify right side
    18,145,812.80x = 219,603,805,652,002.56
  5. Step 5: Solve for x
    x = 219,603,805,652,002.56/18,145,812.80
  6. Step 6: Final answer
    x = 12,102,175.20

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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.