Home / 8,380,087.80-12,570,131.70-2,988,914.10

Finding the Fourth Proportional to 8,380,087.80, 12,570,131.70 and 2,988,914.10

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Solution

The fourth proportional to 8,380,087.80, 12,570,131.70 and 2,988,914.10 is: 4,483,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380,087.80 : 12,570,131.70 = 2,988,914.10 : x
  2. Step 2: Convert to fraction form
    8,380,087.80/12,570,131.70 = 2,988,914.10/x
  3. Step 3: Cross multiply
    8,380,087.80x = 12,570,131.70 × 2,988,914.10
  4. Step 4: Simplify right side
    8,380,087.80x = 37,571,043,876,986.97
  5. Step 5: Solve for x
    x = 37,571,043,876,986.97/8,380,087.80
  6. Step 6: Final answer
    x = 4,483,371.15

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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.