Home / 6,121,127.40-9,181,691.10-3,286,775.40

Finding the Fourth Proportional to 6,121,127.40, 9,181,691.10 and 3,286,775.40

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Solution

The fourth proportional to 6,121,127.40, 9,181,691.10 and 3,286,775.40 is: 4,930,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121,127.40 : 9,181,691.10 = 3,286,775.40 : x
  2. Step 2: Convert to fraction form
    6,121,127.40/9,181,691.10 = 3,286,775.40/x
  3. Step 3: Cross multiply
    6,121,127.40x = 9,181,691.10 × 3,286,775.40
  4. Step 4: Simplify right side
    6,121,127.40x = 30,178,156,437,878.94
  5. Step 5: Solve for x
    x = 30,178,156,437,878.94/6,121,127.40
  6. Step 6: Final answer
    x = 4,930,163.10

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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.