Home / 6,863,618.80-10,295,428.20-1,815,439.60

Finding the Fourth Proportional to 6,863,618.80, 10,295,428.20 and 1,815,439.60

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Solution

The fourth proportional to 6,863,618.80, 10,295,428.20 and 1,815,439.60 is: 2,723,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,863,618.80 : 10,295,428.20 = 1,815,439.60 : x
  2. Step 2: Convert to fraction form
    6,863,618.80/10,295,428.20 = 1,815,439.60/x
  3. Step 3: Cross multiply
    6,863,618.80x = 10,295,428.20 × 1,815,439.60
  4. Step 4: Simplify right side
    6,863,618.80x = 18,690,728,053,236.72
  5. Step 5: Solve for x
    x = 18,690,728,053,236.72/6,863,618.80
  6. Step 6: Final answer
    x = 2,723,159.40

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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.