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Finding the Fourth Proportional to 18,321,446.40, 27,482,169.60 and 18,153,484.80

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Solution

The fourth proportional to 18,321,446.40, 27,482,169.60 and 18,153,484.80 is: 27,230,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,321,446.40 : 27,482,169.60 = 18,153,484.80 : x
  2. Step 2: Convert to fraction form
    18,321,446.40/27,482,169.60 = 18,153,484.80/x
  3. Step 3: Cross multiply
    18,321,446.40x = 27,482,169.60 × 18,153,484.80
  4. Step 4: Simplify right side
    18,321,446.40x = 498,897,148,104,622.12
  5. Step 5: Solve for x
    x = 498,897,148,104,622.12/18,321,446.40
  6. Step 6: Final answer
    x = 27,230,227.20

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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.