Home / 20,179,920.80-28,188,116.20-20,179,920.80

Finding the Fourth Proportional to 20,179,920.80, 28,188,116.20 and 20,179,920.80

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Solution

The fourth proportional to 20,179,920.80, 28,188,116.20 and 20,179,920.80 is: 28,188,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,920.80 : 28,188,116.20 = 20,179,920.80 : x
  2. Step 2: Convert to fraction form
    20,179,920.80/28,188,116.20 = 20,179,920.80/x
  3. Step 3: Cross multiply
    20,179,920.80x = 28,188,116.20 × 20,179,920.80
  4. Step 4: Simplify right side
    20,179,920.80x = 568,833,952,417,197
  5. Step 5: Solve for x
    x = 568,833,952,417,197/20,179,920.80
  6. Step 6: Final answer
    x = 28,188,116.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.