Home / 18,721,919.80-28,082,879.70-16,596,155.80

Finding the Fourth Proportional to 18,721,919.80, 28,082,879.70 and 16,596,155.80

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Solution

The fourth proportional to 18,721,919.80, 28,082,879.70 and 16,596,155.80 is: 24,894,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,919.80 : 28,082,879.70 = 16,596,155.80 : x
  2. Step 2: Convert to fraction form
    18,721,919.80/28,082,879.70 = 16,596,155.80/x
  3. Step 3: Cross multiply
    18,721,919.80x = 28,082,879.70 × 16,596,155.80
  4. Step 4: Simplify right side
    18,721,919.80x = 466,067,846,813,857.25
  5. Step 5: Solve for x
    x = 466,067,846,813,857.25/18,721,919.80
  6. Step 6: Final answer
    x = 24,894,233.70

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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.