Home / 28,340,738.70-42,448,122.45-21,930,204.30

Finding the Fourth Proportional to 28,340,738.70, 42,448,122.45 and 21,930,204.30

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Solution

The fourth proportional to 28,340,738.70, 42,448,122.45 and 21,930,204.30 is: 32,846,567.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340,738.70 : 42,448,122.45 = 21,930,204.30 : x
  2. Step 2: Convert to fraction form
    28,340,738.70/42,448,122.45 = 21,930,204.30/x
  3. Step 3: Cross multiply
    28,340,738.70x = 42,448,122.45 × 21,930,204.30
  4. Step 4: Simplify right side
    28,340,738.70x = 930,895,997,479,916.62
  5. Step 5: Solve for x
    x = 930,895,997,479,916.62/28,340,738.70
  6. Step 6: Final answer
    x = 32,846,567.88

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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.