Home / 18,673,173.68-28,009,812.61-7,162,169.37

Finding the Fourth Proportional to 18,673,173.68, 28,009,812.61 and 7,162,169.37

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Solution

The fourth proportional to 18,673,173.68, 28,009,812.61 and 7,162,169.37 is: 10,743,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673,173.68 : 28,009,812.61 = 7,162,169.37 : x
  2. Step 2: Convert to fraction form
    18,673,173.68/28,009,812.61 = 7,162,169.37/x
  3. Step 3: Cross multiply
    18,673,173.68x = 28,009,812.61 × 7,162,169.37
  4. Step 4: Simplify right side
    18,673,173.68x = 200,611,022,027,630.97
  5. Step 5: Solve for x
    x = 200,611,022,027,630.97/18,673,173.68
  6. Step 6: Final answer
    x = 10,743,274.04

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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.