Home / 13,122,006.70-18,108,380.60-7,320,789.64

Finding the Fourth Proportional to 13,122,006.70, 18,108,380.60 and 7,320,789.64

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Solution

The fourth proportional to 13,122,006.70, 18,108,380.60 and 7,320,789.64 is: 10,102,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,006.70 : 18,108,380.60 = 7,320,789.64 : x
  2. Step 2: Convert to fraction form
    13,122,006.70/18,108,380.60 = 7,320,789.64/x
  3. Step 3: Cross multiply
    13,122,006.70x = 18,108,380.60 × 7,320,789.64
  4. Step 4: Simplify right side
    13,122,006.70x = 132,567,645,093,656.98
  5. Step 5: Solve for x
    x = 132,567,645,093,656.98/13,122,006.70
  6. Step 6: Final answer
    x = 10,102,696.04

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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.