Home / 13,419,685.20-20,105,908.20-11,530,117.20

Finding the Fourth Proportional to 13,419,685.20, 20,105,908.20 and 11,530,117.20

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Solution

The fourth proportional to 13,419,685.20, 20,105,908.20 and 11,530,117.20 is: 17,274,881.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419,685.20 : 20,105,908.20 = 11,530,117.20 : x
  2. Step 2: Convert to fraction form
    13,419,685.20/20,105,908.20 = 11,530,117.20/x
  3. Step 3: Cross multiply
    13,419,685.20x = 20,105,908.20 × 11,530,117.20
  4. Step 4: Simplify right side
    13,419,685.20x = 231,823,477,958,441.03
  5. Step 5: Solve for x
    x = 231,823,477,958,441.03/13,419,685.20
  6. Step 6: Final answer
    x = 17,274,881.97

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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.