Home / 8,303,778.80-12,455,668.20-5,098,511.60

Finding the Fourth Proportional to 8,303,778.80, 12,455,668.20 and 5,098,511.60

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Solution

The fourth proportional to 8,303,778.80, 12,455,668.20 and 5,098,511.60 is: 7,647,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303,778.80 : 12,455,668.20 = 5,098,511.60 : x
  2. Step 2: Convert to fraction form
    8,303,778.80/12,455,668.20 = 5,098,511.60/x
  3. Step 3: Cross multiply
    8,303,778.80x = 12,455,668.20 × 5,098,511.60
  4. Step 4: Simplify right side
    8,303,778.80x = 63,505,368,803,451.11
  5. Step 5: Solve for x
    x = 63,505,368,803,451.11/8,303,778.80
  6. Step 6: Final answer
    x = 7,647,767.40

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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.