Home / 20,427,215.88-28,189,550.94-11,260,011.72

Finding the Fourth Proportional to 20,427,215.88, 28,189,550.94 and 11,260,011.72

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Solution

The fourth proportional to 20,427,215.88, 28,189,550.94 and 11,260,011.72 is: 15,538,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427,215.88 : 28,189,550.94 = 11,260,011.72 : x
  2. Step 2: Convert to fraction form
    20,427,215.88/28,189,550.94 = 11,260,011.72/x
  3. Step 3: Cross multiply
    20,427,215.88x = 28,189,550.94 × 11,260,011.72
  4. Step 4: Simplify right side
    20,427,215.88x = 317,414,673,965,937.06
  5. Step 5: Solve for x
    x = 317,414,673,965,937.06/20,427,215.88
  6. Step 6: Final answer
    x = 15,538,812.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.