Home / 13,206,389.76-19,814,015.52-5,119,629.12

Finding the Fourth Proportional to 13,206,389.76, 19,814,015.52 and 5,119,629.12

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Solution

The fourth proportional to 13,206,389.76, 19,814,015.52 and 5,119,629.12 is: 7,681,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,389.76 : 19,814,015.52 = 5,119,629.12 : x
  2. Step 2: Convert to fraction form
    13,206,389.76/19,814,015.52 = 5,119,629.12/x
  3. Step 3: Cross multiply
    13,206,389.76x = 19,814,015.52 × 5,119,629.12
  4. Step 4: Simplify right side
    13,206,389.76x = 101,440,410,840,323.94
  5. Step 5: Solve for x
    x = 101,440,410,840,323.94/13,206,389.76
  6. Step 6: Final answer
    x = 7,681,161.37

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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.