Home / 13,729,705.56-18,945,741.44-8,146,990.14

Finding the Fourth Proportional to 13,729,705.56, 18,945,741.44 and 8,146,990.14

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Solution

The fourth proportional to 13,729,705.56, 18,945,741.44 and 8,146,990.14 is: 11,242,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729,705.56 : 18,945,741.44 = 8,146,990.14 : x
  2. Step 2: Convert to fraction form
    13,729,705.56/18,945,741.44 = 8,146,990.14/x
  3. Step 3: Cross multiply
    13,729,705.56x = 18,945,741.44 × 8,146,990.14
  4. Step 4: Simplify right side
    13,729,705.56x = 154,350,768,706,669.41
  5. Step 5: Solve for x
    x = 154,350,768,706,669.41/13,729,705.56
  6. Step 6: Final answer
    x = 11,242,103.34

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1.5x scale

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.