Home / 8,172,441-12,258,661.26-3,853,485.88

Finding the Fourth Proportional to 8,172,441, 12,258,661.26 and 3,853,485.88

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Solution

The fourth proportional to 8,172,441, 12,258,661.26 and 3,853,485.88 is: 5,780,228.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172,441 : 12,258,661.26 = 3,853,485.88 : x
  2. Step 2: Convert to fraction form
    8,172,441/12,258,661.26 = 3,853,485.88/x
  3. Step 3: Cross multiply
    8,172,441x = 12,258,661.26 × 3,853,485.88
  4. Step 4: Simplify right side
    8,172,441x = 47,238,578,073,113.01
  5. Step 5: Solve for x
    x = 47,238,578,073,113.01/8,172,441
  6. Step 6: Final answer
    x = 5,780,228.71

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Double scale
Find fourth proportional to 8,172,442, 12,258,662.76 and 3,853,486.88
Similar ratio
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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.