Home / 9,181,813.80-13,772,720.70-8,189,790.60

Finding the Fourth Proportional to 9,181,813.80, 13,772,720.70 and 8,189,790.60

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Solution

The fourth proportional to 9,181,813.80, 13,772,720.70 and 8,189,790.60 is: 12,284,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181,813.80 : 13,772,720.70 = 8,189,790.60 : x
  2. Step 2: Convert to fraction form
    9,181,813.80/13,772,720.70 = 8,189,790.60/x
  3. Step 3: Cross multiply
    9,181,813.80x = 13,772,720.70 × 8,189,790.60
  4. Step 4: Simplify right side
    9,181,813.80x = 112,795,698,525,285.41
  5. Step 5: Solve for x
    x = 112,795,698,525,285.41/9,181,813.80
  6. Step 6: Final answer
    x = 12,284,685.90

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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.