Home / 21,908,819.32-30,231,536.64-12,619,410.54

Finding the Fourth Proportional to 21,908,819.32, 30,231,536.64 and 12,619,410.54

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Solution

The fourth proportional to 21,908,819.32, 30,231,536.64 and 12,619,410.54 is: 17,413,269.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908,819.32 : 30,231,536.64 = 12,619,410.54 : x
  2. Step 2: Convert to fraction form
    21,908,819.32/30,231,536.64 = 12,619,410.54/x
  3. Step 3: Cross multiply
    21,908,819.32x = 30,231,536.64 × 12,619,410.54
  4. Step 4: Simplify right side
    21,908,819.32x = 381,504,172,115,212.19
  5. Step 5: Solve for x
    x = 381,504,172,115,212.19/21,908,819.32
  6. Step 6: Final answer
    x = 17,413,269.36

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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.