Home / 6,520,172.40-9,780,258.60-5,176,479.60

Finding the Fourth Proportional to 6,520,172.40, 9,780,258.60 and 5,176,479.60

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Solution

The fourth proportional to 6,520,172.40, 9,780,258.60 and 5,176,479.60 is: 7,764,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,520,172.40 : 9,780,258.60 = 5,176,479.60 : x
  2. Step 2: Convert to fraction form
    6,520,172.40/9,780,258.60 = 5,176,479.60/x
  3. Step 3: Cross multiply
    6,520,172.40x = 9,780,258.60 × 5,176,479.60
  4. Step 4: Simplify right side
    6,520,172.40x = 50,627,309,125,624.55
  5. Step 5: Solve for x
    x = 50,627,309,125,624.55/6,520,172.40
  6. Step 6: Final answer
    x = 7,764,719.40

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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.