Home / 18,949,221.20-28,423,569-4,572,169.04

Finding the Fourth Proportional to 18,949,221.20, 28,423,569 and 4,572,169.04

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Solution

The fourth proportional to 18,949,221.20, 28,423,569 and 4,572,169.04 is: 6,858,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949,221.20 : 28,423,569 = 4,572,169.04 : x
  2. Step 2: Convert to fraction form
    18,949,221.20/28,423,569 = 4,572,169.04/x
  3. Step 3: Cross multiply
    18,949,221.20x = 28,423,569 × 4,572,169.04
  4. Step 4: Simplify right side
    18,949,221.20x = 129,957,362,188,103.77
  5. Step 5: Solve for x
    x = 129,957,362,188,103.77/18,949,221.20
  6. Step 6: Final answer
    x = 6,858,190.15

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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.