Home / 20,616,772.97-28,450,367.20-11,450,006.21

Finding the Fourth Proportional to 20,616,772.97, 28,450,367.20 and 11,450,006.21

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Solution

The fourth proportional to 20,616,772.97, 28,450,367.20 and 11,450,006.21 is: 15,800,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616,772.97 : 28,450,367.20 = 11,450,006.21 : x
  2. Step 2: Convert to fraction form
    20,616,772.97/28,450,367.20 = 11,450,006.21/x
  3. Step 3: Cross multiply
    20,616,772.97x = 28,450,367.20 × 11,450,006.21
  4. Step 4: Simplify right side
    20,616,772.97x = 325,756,880,917,278.44
  5. Step 5: Solve for x
    x = 325,756,880,917,278.44/20,616,772.97
  6. Step 6: Final answer
    x = 15,800,575.65

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1.5x scale

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.