Home / 20,169,043.80-30,253,565.70-11,665,987.80

Finding the Fourth Proportional to 20,169,043.80, 30,253,565.70 and 11,665,987.80

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Solution

The fourth proportional to 20,169,043.80, 30,253,565.70 and 11,665,987.80 is: 17,498,981.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,043.80 : 30,253,565.70 = 11,665,987.80 : x
  2. Step 2: Convert to fraction form
    20,169,043.80/30,253,565.70 = 11,665,987.80/x
  3. Step 3: Cross multiply
    20,169,043.80x = 30,253,565.70 × 11,665,987.80
  4. Step 4: Simplify right side
    20,169,043.80x = 352,937,728,362,698.50
  5. Step 5: Solve for x
    x = 352,937,728,362,698.50/20,169,043.80
  6. Step 6: Final answer
    x = 17,498,981.70

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Double scale
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Similar ratio
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1.5x scale

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.