Home / 129,044,365.20-193,790,496.60-68,578,189.20

Finding the Fourth Proportional to 129,044,365.20, 193,790,496.60 and 68,578,189.20

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Solution

The fourth proportional to 129,044,365.20, 193,790,496.60 and 68,578,189.20 is: 102,986,297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,044,365.20 : 193,790,496.60 = 68,578,189.20 : x
  2. Step 2: Convert to fraction form
    129,044,365.20/193,790,496.60 = 68,578,189.20/x
  3. Step 3: Cross multiply
    129,044,365.20x = 193,790,496.60 × 68,578,189.20
  4. Step 4: Simplify right side
    129,044,365.20x = 13,289,801,340,996,756
  5. Step 5: Solve for x
    x = 13,289,801,340,996,756/129,044,365.20
  6. Step 6: Final answer
    x = 102,986,297.16

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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.