Home / 12,492,091.80-18,738,137.70-9,654,240.60

Finding the Fourth Proportional to 12,492,091.80, 18,738,137.70 and 9,654,240.60

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Solution

The fourth proportional to 12,492,091.80, 18,738,137.70 and 9,654,240.60 is: 14,481,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,492,091.80 : 18,738,137.70 = 9,654,240.60 : x
  2. Step 2: Convert to fraction form
    12,492,091.80/18,738,137.70 = 9,654,240.60/x
  3. Step 3: Cross multiply
    12,492,091.80x = 18,738,137.70 × 9,654,240.60
  4. Step 4: Simplify right side
    12,492,091.80x = 180,902,489,751,730.59
  5. Step 5: Solve for x
    x = 180,902,489,751,730.59/12,492,091.80
  6. Step 6: Final answer
    x = 14,481,360.90

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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.