Home / 18,991,199.64-28,454,344.38-13,572,163.56

Finding the Fourth Proportional to 18,991,199.64, 28,454,344.38 and 13,572,163.56

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Solution

The fourth proportional to 18,991,199.64, 28,454,344.38 and 13,572,163.56 is: 20,335,051.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,991,199.64 : 28,454,344.38 = 13,572,163.56 : x
  2. Step 2: Convert to fraction form
    18,991,199.64/28,454,344.38 = 13,572,163.56/x
  3. Step 3: Cross multiply
    18,991,199.64x = 28,454,344.38 × 13,572,163.56
  4. Step 4: Simplify right side
    18,991,199.64x = 386,187,015,917,926.81
  5. Step 5: Solve for x
    x = 386,187,015,917,926.81/18,991,199.64
  6. Step 6: Final answer
    x = 20,335,051.14

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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.