Home / 20,689,947.32-28,553,013.15-11,522,590.07

Finding the Fourth Proportional to 20,689,947.32, 28,553,013.15 and 11,522,590.07

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Solution

The fourth proportional to 20,689,947.32, 28,553,013.15 and 11,522,590.07 is: 15,901,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,689,947.32 : 28,553,013.15 = 11,522,590.07 : x
  2. Step 2: Convert to fraction form
    20,689,947.32/28,553,013.15 = 11,522,590.07/x
  3. Step 3: Cross multiply
    20,689,947.32x = 28,553,013.15 × 11,522,590.07
  4. Step 4: Simplify right side
    20,689,947.32x = 329,004,665,790,769.44
  5. Step 5: Solve for x
    x = 329,004,665,790,769.44/20,689,947.32
  6. Step 6: Final answer
    x = 15,901,667.64

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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.