Home / 18,145,431.40-27,218,147.10-6,178,167.40

Finding the Fourth Proportional to 18,145,431.40, 27,218,147.10 and 6,178,167.40

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Solution

The fourth proportional to 18,145,431.40, 27,218,147.10 and 6,178,167.40 is: 9,267,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,431.40 : 27,218,147.10 = 6,178,167.40 : x
  2. Step 2: Convert to fraction form
    18,145,431.40/27,218,147.10 = 6,178,167.40/x
  3. Step 3: Cross multiply
    18,145,431.40x = 27,218,147.10 × 6,178,167.40
  4. Step 4: Simplify right side
    18,145,431.40x = 168,158,269,101,624.56
  5. Step 5: Solve for x
    x = 168,158,269,101,624.56/18,145,431.40
  6. Step 6: Final answer
    x = 9,267,251.10

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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.