Home / 20,639,723.62-28,482,836.82-11,347,451.77

Finding the Fourth Proportional to 20,639,723.62, 28,482,836.82 and 11,347,451.77

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Solution

The fourth proportional to 20,639,723.62, 28,482,836.82 and 11,347,451.77 is: 15,659,493.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639,723.62 : 28,482,836.82 = 11,347,451.77 : x
  2. Step 2: Convert to fraction form
    20,639,723.62/28,482,836.82 = 11,347,451.77/x
  3. Step 3: Cross multiply
    20,639,723.62x = 28,482,836.82 × 11,347,451.77
  4. Step 4: Simplify right side
    20,639,723.62x = 323,207,617,087,730.19
  5. Step 5: Solve for x
    x = 323,207,617,087,730.19/20,639,723.62
  6. Step 6: Final answer
    x = 15,659,493.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.