Home / 5,428,879.40-8,143,319.10-3,299,616.20

Finding the Fourth Proportional to 5,428,879.40, 8,143,319.10 and 3,299,616.20

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Solution

The fourth proportional to 5,428,879.40, 8,143,319.10 and 3,299,616.20 is: 4,949,424.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428,879.40 : 8,143,319.10 = 3,299,616.20 : x
  2. Step 2: Convert to fraction form
    5,428,879.40/8,143,319.10 = 3,299,616.20/x
  3. Step 3: Cross multiply
    5,428,879.40x = 8,143,319.10 × 3,299,616.20
  4. Step 4: Simplify right side
    5,428,879.40x = 26,869,827,624,129.42
  5. Step 5: Solve for x
    x = 26,869,827,624,129.42/5,428,879.40
  6. Step 6: Final answer
    x = 4,949,424.30

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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.