Home / 8,505,905.80-12,758,858.70-4,460,830.60

Finding the Fourth Proportional to 8,505,905.80, 12,758,858.70 and 4,460,830.60

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Solution

The fourth proportional to 8,505,905.80, 12,758,858.70 and 4,460,830.60 is: 6,691,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,505,905.80 : 12,758,858.70 = 4,460,830.60 : x
  2. Step 2: Convert to fraction form
    8,505,905.80/12,758,858.70 = 4,460,830.60/x
  3. Step 3: Cross multiply
    8,505,905.80x = 12,758,858.70 × 4,460,830.60
  4. Step 4: Simplify right side
    8,505,905.80x = 56,915,107,310,036.21
  5. Step 5: Solve for x
    x = 56,915,107,310,036.21/8,505,905.80
  6. Step 6: Final answer
    x = 6,691,245.90

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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.