Home / 12,203,998.40-18,305,997.60-9,369,646.40

Finding the Fourth Proportional to 12,203,998.40, 18,305,997.60 and 9,369,646.40

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Solution

The fourth proportional to 12,203,998.40, 18,305,997.60 and 9,369,646.40 is: 14,054,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203,998.40 : 18,305,997.60 = 9,369,646.40 : x
  2. Step 2: Convert to fraction form
    12,203,998.40/18,305,997.60 = 9,369,646.40/x
  3. Step 3: Cross multiply
    12,203,998.40x = 18,305,997.60 × 9,369,646.40
  4. Step 4: Simplify right side
    12,203,998.40x = 171,520,724,511,248.66
  5. Step 5: Solve for x
    x = 171,520,724,511,248.66/12,203,998.40
  6. Step 6: Final answer
    x = 14,054,469.60

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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.