Home / 20,956,993.92-28,920,602.88-11,789,634.24

Finding the Fourth Proportional to 20,956,993.92, 28,920,602.88 and 11,789,634.24

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Solution

The fourth proportional to 20,956,993.92, 28,920,602.88 and 11,789,634.24 is: 16,269,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956,993.92 : 28,920,602.88 = 11,789,634.24 : x
  2. Step 2: Convert to fraction form
    20,956,993.92/28,920,602.88 = 11,789,634.24/x
  3. Step 3: Cross multiply
    20,956,993.92x = 28,920,602.88 × 11,789,634.24
  4. Step 4: Simplify right side
    20,956,993.92x = 340,963,329,955,490.62
  5. Step 5: Solve for x
    x = 340,963,329,955,490.62/20,956,993.92
  6. Step 6: Final answer
    x = 16,269,667.84

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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.