Home / 20,322,339.60-28,044,855.12-11,029,909.20

Finding the Fourth Proportional to 20,322,339.60, 28,044,855.12 and 11,029,909.20

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Solution

The fourth proportional to 20,322,339.60, 28,044,855.12 and 11,029,909.20 is: 15,221,289.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322,339.60 : 28,044,855.12 = 11,029,909.20 : x
  2. Step 2: Convert to fraction form
    20,322,339.60/28,044,855.12 = 11,029,909.20/x
  3. Step 3: Cross multiply
    20,322,339.60x = 28,044,855.12 × 11,029,909.20
  4. Step 4: Simplify right side
    20,322,339.60x = 309,332,205,500,755.12
  5. Step 5: Solve for x
    x = 309,332,205,500,755.12/20,322,339.60
  6. Step 6: Final answer
    x = 15,221,289.06

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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.