Home / 18,805,806.72-28,208,716.35-12,414,564.41

Finding the Fourth Proportional to 18,805,806.72, 28,208,716.35 and 12,414,564.41

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Solution

The fourth proportional to 18,805,806.72, 28,208,716.35 and 12,414,564.41 is: 18,621,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,806.72 : 28,208,716.35 = 12,414,564.41 : x
  2. Step 2: Convert to fraction form
    18,805,806.72/28,208,716.35 = 12,414,564.41/x
  3. Step 3: Cross multiply
    18,805,806.72x = 28,208,716.35 × 12,414,564.41
  4. Step 4: Simplify right side
    18,805,806.72x = 350,198,925,909,451.50
  5. Step 5: Solve for x
    x = 350,198,925,909,451.50/18,805,806.72
  6. Step 6: Final answer
    x = 18,621,850.75

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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.