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Finding the Fourth Proportional to 6,489,399.60, 9,734,099.40 and 2,702,390.40

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Solution

The fourth proportional to 6,489,399.60, 9,734,099.40 and 2,702,390.40 is: 4,053,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,399.60 : 9,734,099.40 = 2,702,390.40 : x
  2. Step 2: Convert to fraction form
    6,489,399.60/9,734,099.40 = 2,702,390.40/x
  3. Step 3: Cross multiply
    6,489,399.60x = 9,734,099.40 × 2,702,390.40
  4. Step 4: Simplify right side
    6,489,399.60x = 26,305,336,771,205.76
  5. Step 5: Solve for x
    x = 26,305,336,771,205.76/6,489,399.60
  6. Step 6: Final answer
    x = 4,053,585.60

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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.