Home / 28,979,814.40-43,469,721.60-21,752,216.80

Finding the Fourth Proportional to 28,979,814.40, 43,469,721.60 and 21,752,216.80

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Solution

The fourth proportional to 28,979,814.40, 43,469,721.60 and 21,752,216.80 is: 32,628,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,814.40 : 43,469,721.60 = 21,752,216.80 : x
  2. Step 2: Convert to fraction form
    28,979,814.40/43,469,721.60 = 21,752,216.80/x
  3. Step 3: Cross multiply
    28,979,814.40x = 43,469,721.60 × 21,752,216.80
  4. Step 4: Simplify right side
    28,979,814.40x = 945,562,808,478,843
  5. Step 5: Solve for x
    x = 945,562,808,478,843/28,979,814.40
  6. Step 6: Final answer
    x = 32,628,325.20

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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.