Home / 21,491,974.80-32,237,962.20-18,972,550.80

Finding the Fourth Proportional to 21,491,974.80, 32,237,962.20 and 18,972,550.80

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Solution

The fourth proportional to 21,491,974.80, 32,237,962.20 and 18,972,550.80 is: 28,458,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491,974.80 : 32,237,962.20 = 18,972,550.80 : x
  2. Step 2: Convert to fraction form
    21,491,974.80/32,237,962.20 = 18,972,550.80/x
  3. Step 3: Cross multiply
    21,491,974.80x = 32,237,962.20 × 18,972,550.80
  4. Step 4: Simplify right side
    21,491,974.80x = 611,636,375,527,979.75
  5. Step 5: Solve for x
    x = 611,636,375,527,979.75/21,491,974.80
  6. Step 6: Final answer
    x = 28,458,826.20

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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.