Home / 5,428,261.90-8,142,392.85-3,298,998.70

Finding the Fourth Proportional to 5,428,261.90, 8,142,392.85 and 3,298,998.70

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Solution

The fourth proportional to 5,428,261.90, 8,142,392.85 and 3,298,998.70 is: 4,948,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,261.90 : 8,142,392.85 = 3,298,998.70 : x
  2. Step 2: Convert to fraction form
    5,428,261.90/8,142,392.85 = 3,298,998.70/x
  3. Step 3: Cross multiply
    5,428,261.90x = 8,142,392.85 × 3,298,998.70
  4. Step 4: Simplify right side
    5,428,261.90x = 26,861,743,427,039.30
  5. Step 5: Solve for x
    x = 26,861,743,427,039.30/5,428,261.90
  6. Step 6: Final answer
    x = 4,948,498.05

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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.