Home / 12,768,209.91-19,160,989.97-5,196,553.47

Finding the Fourth Proportional to 12,768,209.91, 19,160,989.97 and 5,196,553.47

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Solution

The fourth proportional to 12,768,209.91, 19,160,989.97 and 5,196,553.47 is: 7,798,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,209.91 : 19,160,989.97 = 5,196,553.47 : x
  2. Step 2: Convert to fraction form
    12,768,209.91/19,160,989.97 = 5,196,553.47/x
  3. Step 3: Cross multiply
    12,768,209.91x = 19,160,989.97 × 5,196,553.47
  4. Step 4: Simplify right side
    12,768,209.91x = 99,571,108,917,238.69
  5. Step 5: Solve for x
    x = 99,571,108,917,238.69/12,768,209.91
  6. Step 6: Final answer
    x = 7,798,360.90

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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.