Home / 12,090,130.80-18,135,196.20-8,263,755.60

Finding the Fourth Proportional to 12,090,130.80, 18,135,196.20 and 8,263,755.60

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Solution

The fourth proportional to 12,090,130.80, 18,135,196.20 and 8,263,755.60 is: 12,395,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090,130.80 : 18,135,196.20 = 8,263,755.60 : x
  2. Step 2: Convert to fraction form
    12,090,130.80/18,135,196.20 = 8,263,755.60/x
  3. Step 3: Cross multiply
    12,090,130.80x = 18,135,196.20 × 8,263,755.60
  4. Step 4: Simplify right side
    12,090,130.80x = 149,864,829,154,848.72
  5. Step 5: Solve for x
    x = 149,864,829,154,848.72/12,090,130.80
  6. Step 6: Final answer
    x = 12,395,633.40

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Double scale
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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.