Home / 8,305,235.20-12,457,852.80-8,137,273.60

Finding the Fourth Proportional to 8,305,235.20, 12,457,852.80 and 8,137,273.60

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Solution

The fourth proportional to 8,305,235.20, 12,457,852.80 and 8,137,273.60 is: 12,205,910.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,235.20 : 12,457,852.80 = 8,137,273.60 : x
  2. Step 2: Convert to fraction form
    8,305,235.20/12,457,852.80 = 8,137,273.60/x
  3. Step 3: Cross multiply
    8,305,235.20x = 12,457,852.80 × 8,137,273.60
  4. Step 4: Simplify right side
    8,305,235.20x = 101,372,956,702,126.08
  5. Step 5: Solve for x
    x = 101,372,956,702,126.08/8,305,235.20
  6. Step 6: Final answer
    x = 12,205,910.40

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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.