Home / 13,122,008.79-18,108,383.49-7,320,791.73

Finding the Fourth Proportional to 13,122,008.79, 18,108,383.49 and 7,320,791.73

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Solution

The fourth proportional to 13,122,008.79, 18,108,383.49 and 7,320,791.73 is: 10,102,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,008.79 : 18,108,383.49 = 7,320,791.73 : x
  2. Step 2: Convert to fraction form
    13,122,008.79/18,108,383.49 = 7,320,791.73/x
  3. Step 3: Cross multiply
    13,122,008.79x = 18,108,383.49 × 7,320,791.73
  4. Step 4: Simplify right side
    13,122,008.79x = 132,567,704,097,260.53
  5. Step 5: Solve for x
    x = 132,567,704,097,260.53/13,122,008.79
  6. Step 6: Final answer
    x = 10,102,698.93

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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.