Home / 19,179,900.72-28,723,891.32-13,978,569.60

Finding the Fourth Proportional to 19,179,900.72, 28,723,891.32 and 13,978,569.60

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Solution

The fourth proportional to 19,179,900.72, 28,723,891.32 and 13,978,569.60 is: 20,934,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179,900.72 : 28,723,891.32 = 13,978,569.60 : x
  2. Step 2: Convert to fraction form
    19,179,900.72/28,723,891.32 = 13,978,569.60/x
  3. Step 3: Cross multiply
    19,179,900.72x = 28,723,891.32 × 13,978,569.60
  4. Step 4: Simplify right side
    19,179,900.72x = 401,518,913,999,455.88
  5. Step 5: Solve for x
    x = 401,518,913,999,455.88/19,179,900.72
  6. Step 6: Final answer
    x = 20,934,358.31

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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.