Home / 3,478,118.30-5,217,177.45-2,638,310.30

Finding the Fourth Proportional to 3,478,118.30, 5,217,177.45 and 2,638,310.30

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Solution

The fourth proportional to 3,478,118.30, 5,217,177.45 and 2,638,310.30 is: 3,957,465.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,118.30 : 5,217,177.45 = 2,638,310.30 : x
  2. Step 2: Convert to fraction form
    3,478,118.30/5,217,177.45 = 2,638,310.30/x
  3. Step 3: Cross multiply
    3,478,118.30x = 5,217,177.45 × 2,638,310.30
  4. Step 4: Simplify right side
    3,478,118.30x = 13,764,533,003,262.73
  5. Step 5: Solve for x
    x = 13,764,533,003,262.73/3,478,118.30
  6. Step 6: Final answer
    x = 3,957,465.45

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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.