Home / 20,690,584.72-28,553,891.88-11,523,226

Finding the Fourth Proportional to 20,690,584.72, 28,553,891.88 and 11,523,226

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Solution

The fourth proportional to 20,690,584.72, 28,553,891.88 and 11,523,226 is: 15,902,544.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,584.72 : 28,553,891.88 = 11,523,226 : x
  2. Step 2: Convert to fraction form
    20,690,584.72/28,553,891.88 = 11,523,226/x
  3. Step 3: Cross multiply
    20,690,584.72x = 28,553,891.88 × 11,523,226
  4. Step 4: Simplify right side
    20,690,584.72x = 329,032,949,312,804.88
  5. Step 5: Solve for x
    x = 329,032,949,312,804.88/20,690,584.72
  6. Step 6: Final answer
    x = 15,902,544.75

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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.