Home / 19,928,138.20-29,873,399.10-10,816,804.60

Finding the Fourth Proportional to 19,928,138.20, 29,873,399.10 and 10,816,804.60

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Solution

The fourth proportional to 19,928,138.20, 29,873,399.10 and 10,816,804.60 is: 16,214,997.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,138.20 : 29,873,399.10 = 10,816,804.60 : x
  2. Step 2: Convert to fraction form
    19,928,138.20/29,873,399.10 = 10,816,804.60/x
  3. Step 3: Cross multiply
    19,928,138.20x = 29,873,399.10 × 10,816,804.60
  4. Step 4: Simplify right side
    19,928,138.20x = 323,134,720,802,515.88
  5. Step 5: Solve for x
    x = 323,134,720,802,515.88/19,928,138.20
  6. Step 6: Final answer
    x = 16,214,997.99

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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.