Home / 8,255,490.40-12,383,235.60-4,429,115.20

Finding the Fourth Proportional to 8,255,490.40, 12,383,235.60 and 4,429,115.20

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Solution

The fourth proportional to 8,255,490.40, 12,383,235.60 and 4,429,115.20 is: 6,643,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255,490.40 : 12,383,235.60 = 4,429,115.20 : x
  2. Step 2: Convert to fraction form
    8,255,490.40/12,383,235.60 = 4,429,115.20/x
  3. Step 3: Cross multiply
    8,255,490.40x = 12,383,235.60 × 4,429,115.20
  4. Step 4: Simplify right side
    8,255,490.40x = 54,846,777,021,141.12
  5. Step 5: Solve for x
    x = 54,846,777,021,141.12/8,255,490.40
  6. Step 6: Final answer
    x = 6,643,672.80

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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.