Home / 13,320,288.54-18,381,998.02-7,208,717.04

Finding the Fourth Proportional to 13,320,288.54, 18,381,998.02 and 7,208,717.04

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Solution

The fourth proportional to 13,320,288.54, 18,381,998.02 and 7,208,717.04 is: 9,948,029.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,288.54 : 18,381,998.02 = 7,208,717.04 : x
  2. Step 2: Convert to fraction form
    13,320,288.54/18,381,998.02 = 7,208,717.04/x
  3. Step 3: Cross multiply
    13,320,288.54x = 18,381,998.02 × 7,208,717.04
  4. Step 4: Simplify right side
    13,320,288.54x = 132,510,622,356,020.27
  5. Step 5: Solve for x
    x = 132,510,622,356,020.27/13,320,288.54
  6. Step 6: Final answer
    x = 9,948,029.43

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1.5x scale

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.