Home / 18,448,378.80-27,680,441.40-8,858,821.20

Finding the Fourth Proportional to 18,448,378.80, 27,680,441.40 and 8,858,821.20

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Solution

The fourth proportional to 18,448,378.80, 27,680,441.40 and 8,858,821.20 is: 13,292,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448,378.80 : 27,680,441.40 = 8,858,821.20 : x
  2. Step 2: Convert to fraction form
    18,448,378.80/27,680,441.40 = 8,858,821.20/x
  3. Step 3: Cross multiply
    18,448,378.80x = 27,680,441.40 × 8,858,821.20
  4. Step 4: Simplify right side
    18,448,378.80x = 245,216,081,099,677.66
  5. Step 5: Solve for x
    x = 245,216,081,099,677.66/18,448,378.80
  6. Step 6: Final answer
    x = 13,292,012.47

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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.