Home / 18,892,364.40-28,273,228.20-11,324,761.20

Finding the Fourth Proportional to 18,892,364.40, 28,273,228.20 and 11,324,761.20

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Solution

The fourth proportional to 18,892,364.40, 28,273,228.20 and 11,324,761.20 is: 16,947,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,892,364.40 : 28,273,228.20 = 11,324,761.20 : x
  2. Step 2: Convert to fraction form
    18,892,364.40/28,273,228.20 = 11,324,761.20/x
  3. Step 3: Cross multiply
    18,892,364.40x = 28,273,228.20 × 11,324,761.20
  4. Step 4: Simplify right side
    18,892,364.40x = 320,187,557,718,105.81
  5. Step 5: Solve for x
    x = 320,187,557,718,105.81/18,892,364.40
  6. Step 6: Final answer
    x = 16,947,987.61

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1.5x scale

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.