Home / 19,345,015.20-28,992,639.60-11,763,933.60

Finding the Fourth Proportional to 19,345,015.20, 28,992,639.60 and 11,763,933.60

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Solution

The fourth proportional to 19,345,015.20, 28,992,639.60 and 11,763,933.60 is: 17,630,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345,015.20 : 28,992,639.60 = 11,763,933.60 : x
  2. Step 2: Convert to fraction form
    19,345,015.20/28,992,639.60 = 11,763,933.60/x
  3. Step 3: Cross multiply
    19,345,015.20x = 28,992,639.60 × 11,763,933.60
  4. Step 4: Simplify right side
    19,345,015.20x = 341,067,487,143,130.56
  5. Step 5: Solve for x
    x = 341,067,487,143,130.56/19,345,015.20
  6. Step 6: Final answer
    x = 17,630,768.63

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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.