Home / 13,122,007.29-18,108,381.41-7,320,790.23

Finding the Fourth Proportional to 13,122,007.29, 18,108,381.41 and 7,320,790.23

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Solution

The fourth proportional to 13,122,007.29, 18,108,381.41 and 7,320,790.23 is: 10,102,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,007.29 : 18,108,381.41 = 7,320,790.23 : x
  2. Step 2: Convert to fraction form
    13,122,007.29/18,108,381.41 = 7,320,790.23/x
  3. Step 3: Cross multiply
    13,122,007.29x = 18,108,381.41 × 7,320,790.23
  4. Step 4: Simplify right side
    13,122,007.29x = 132,567,661,671,563.66
  5. Step 5: Solve for x
    x = 132,567,661,671,563.66/13,122,007.29
  6. Step 6: Final answer
    x = 10,102,696.85

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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.