Home / 7,242,687.70-10,864,031.55-2,193,998.20

Finding the Fourth Proportional to 7,242,687.70, 10,864,031.55 and 2,193,998.20

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Solution

The fourth proportional to 7,242,687.70, 10,864,031.55 and 2,193,998.20 is: 3,290,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242,687.70 : 10,864,031.55 = 2,193,998.20 : x
  2. Step 2: Convert to fraction form
    7,242,687.70/10,864,031.55 = 2,193,998.20/x
  3. Step 3: Cross multiply
    7,242,687.70x = 10,864,031.55 × 2,193,998.20
  4. Step 4: Simplify right side
    7,242,687.70x = 23,835,665,665,443.21
  5. Step 5: Solve for x
    x = 23,835,665,665,443.21/7,242,687.70
  6. Step 6: Final answer
    x = 3,290,997.30

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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.