Home / 13,729,706.06-18,945,742.13-8,146,990.64

Finding the Fourth Proportional to 13,729,706.06, 18,945,742.13 and 8,146,990.64

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Solution

The fourth proportional to 13,729,706.06, 18,945,742.13 and 8,146,990.64 is: 11,242,104.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,706.06 : 18,945,742.13 = 8,146,990.64 : x
  2. Step 2: Convert to fraction form
    13,729,706.06/18,945,742.13 = 8,146,990.64/x
  3. Step 3: Cross multiply
    13,729,706.06x = 18,945,742.13 × 8,146,990.64
  4. Step 4: Simplify right side
    13,729,706.06x = 154,350,783,800,963.66
  5. Step 5: Solve for x
    x = 154,350,783,800,963.66/13,729,706.06
  6. Step 6: Final answer
    x = 11,242,104.03

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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.