Home / 10,643,608.40-15,965,412.60-8,517,844.40

Finding the Fourth Proportional to 10,643,608.40, 15,965,412.60 and 8,517,844.40

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Solution

The fourth proportional to 10,643,608.40, 15,965,412.60 and 8,517,844.40 is: 12,776,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643,608.40 : 15,965,412.60 = 8,517,844.40 : x
  2. Step 2: Convert to fraction form
    10,643,608.40/15,965,412.60 = 8,517,844.40/x
  3. Step 3: Cross multiply
    10,643,608.40x = 15,965,412.60 × 8,517,844.40
  4. Step 4: Simplify right side
    10,643,608.40x = 135,990,900,308,599.44
  5. Step 5: Solve for x
    x = 135,990,900,308,599.44/10,643,608.40
  6. Step 6: Final answer
    x = 12,776,766.60

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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.