Home / 7,120,880.64-10,681,320.96-1,729,497.60

Finding the Fourth Proportional to 7,120,880.64, 10,681,320.96 and 1,729,497.60

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Solution

The fourth proportional to 7,120,880.64, 10,681,320.96 and 1,729,497.60 is: 2,594,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120,880.64 : 10,681,320.96 = 1,729,497.60 : x
  2. Step 2: Convert to fraction form
    7,120,880.64/10,681,320.96 = 1,729,497.60/x
  3. Step 3: Cross multiply
    7,120,880.64x = 10,681,320.96 × 1,729,497.60
  4. Step 4: Simplify right side
    7,120,880.64x = 18,473,318,965,149.70
  5. Step 5: Solve for x
    x = 18,473,318,965,149.70/7,120,880.64
  6. Step 6: Final answer
    x = 2,594,246.40

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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.