Home / 20,280,889.26-30,400,863.54-12,713,169.42

Finding the Fourth Proportional to 20,280,889.26, 30,400,863.54 and 12,713,169.42

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Solution

The fourth proportional to 20,280,889.26, 30,400,863.54 and 12,713,169.42 is: 19,056,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280,889.26 : 30,400,863.54 = 12,713,169.42 : x
  2. Step 2: Convert to fraction form
    20,280,889.26/30,400,863.54 = 12,713,169.42/x
  3. Step 3: Cross multiply
    20,280,889.26x = 30,400,863.54 × 12,713,169.42
  4. Step 4: Simplify right side
    20,280,889.26x = 386,491,328,698,320.94
  5. Step 5: Solve for x
    x = 386,491,328,698,320.94/20,280,889.26
  6. Step 6: Final answer
    x = 19,056,922.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.