Home / 19,179,066.40-28,768,599.60-12,012,704.80

Finding the Fourth Proportional to 19,179,066.40, 28,768,599.60 and 12,012,704.80

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Solution

The fourth proportional to 19,179,066.40, 28,768,599.60 and 12,012,704.80 is: 18,019,057.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179,066.40 : 28,768,599.60 = 12,012,704.80 : x
  2. Step 2: Convert to fraction form
    19,179,066.40/28,768,599.60 = 12,012,704.80/x
  3. Step 3: Cross multiply
    19,179,066.40x = 28,768,599.60 × 12,012,704.80
  4. Step 4: Simplify right side
    19,179,066.40x = 345,588,694,504,198.12
  5. Step 5: Solve for x
    x = 345,588,694,504,198.12/19,179,066.40
  6. Step 6: Final answer
    x = 18,019,057.20

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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.