Home / 20,321,390.44-28,039,901.11-11,500,800.27

Finding the Fourth Proportional to 20,321,390.44, 28,039,901.11 and 11,500,800.27

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Solution

The fourth proportional to 20,321,390.44, 28,039,901.11 and 11,500,800.27 is: 15,869,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,390.44 : 28,039,901.11 = 11,500,800.27 : x
  2. Step 2: Convert to fraction form
    20,321,390.44/28,039,901.11 = 11,500,800.27/x
  3. Step 3: Cross multiply
    20,321,390.44x = 28,039,901.11 × 11,500,800.27
  4. Step 4: Simplify right side
    20,321,390.44x = 322,481,302,256,661.25
  5. Step 5: Solve for x
    x = 322,481,302,256,661.25/20,321,390.44
  6. Step 6: Final answer
    x = 15,869,056.95

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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.