Home / 20,789,838.27-28,690,167.67-11,496,928.05

Finding the Fourth Proportional to 20,789,838.27, 28,690,167.67 and 11,496,928.05

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Solution

The fourth proportional to 20,789,838.27, 28,690,167.67 and 11,496,928.05 is: 15,865,866.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,789,838.27 : 28,690,167.67 = 11,496,928.05 : x
  2. Step 2: Convert to fraction form
    20,789,838.27/28,690,167.67 = 11,496,928.05/x
  3. Step 3: Cross multiply
    20,789,838.27x = 28,690,167.67 × 11,496,928.05
  4. Step 4: Simplify right side
    20,789,838.27x = 329,848,793,415,683.88
  5. Step 5: Solve for x
    x = 329,848,793,415,683.88/20,789,838.27
  6. Step 6: Final answer
    x = 15,865,866.25

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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.