Home / 8,190,340.80-12,285,511.20-8,084,052.60

Finding the Fourth Proportional to 8,190,340.80, 12,285,511.20 and 8,084,052.60

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Solution

The fourth proportional to 8,190,340.80, 12,285,511.20 and 8,084,052.60 is: 12,126,078.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190,340.80 : 12,285,511.20 = 8,084,052.60 : x
  2. Step 2: Convert to fraction form
    8,190,340.80/12,285,511.20 = 8,084,052.60/x
  3. Step 3: Cross multiply
    8,190,340.80x = 12,285,511.20 × 8,084,052.60
  4. Step 4: Simplify right side
    8,190,340.80x = 99,316,718,758,689.11
  5. Step 5: Solve for x
    x = 99,316,718,758,689.11/8,190,340.80
  6. Step 6: Final answer
    x = 12,126,078.90

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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.