Home / 199,305,845.40-298,958,768.10-91,810,421.40

Finding the Fourth Proportional to 199,305,845.40, 298,958,768.10 and 91,810,421.40

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Solution

The fourth proportional to 199,305,845.40, 298,958,768.10 and 91,810,421.40 is: 137,715,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,305,845.40 : 298,958,768.10 = 91,810,421.40 : x
  2. Step 2: Convert to fraction form
    199,305,845.40/298,958,768.10 = 91,810,421.40/x
  3. Step 3: Cross multiply
    199,305,845.40x = 298,958,768.10 × 91,810,421.40
  4. Step 4: Simplify right side
    199,305,845.40x = 27,447,530,480,485,880
  5. Step 5: Solve for x
    x = 27,447,530,480,485,880/199,305,845.40
  6. Step 6: Final answer
    x = 137,715,632.10

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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.