Home / 28,981,480.40-43,472,220.60-18,777,813.20

Finding the Fourth Proportional to 28,981,480.40, 43,472,220.60 and 18,777,813.20

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Solution

The fourth proportional to 28,981,480.40, 43,472,220.60 and 18,777,813.20 is: 28,166,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,981,480.40 : 43,472,220.60 = 18,777,813.20 : x
  2. Step 2: Convert to fraction form
    28,981,480.40/43,472,220.60 = 18,777,813.20/x
  3. Step 3: Cross multiply
    28,981,480.40x = 43,472,220.60 × 18,777,813.20
  4. Step 4: Simplify right side
    28,981,480.40x = 816,313,237,815,991.88
  5. Step 5: Solve for x
    x = 816,313,237,815,991.88/28,981,480.40
  6. Step 6: Final answer
    x = 28,166,719.80

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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.