Home / 18,726,047.80-28,047,081.30-15,366,815.80

Finding the Fourth Proportional to 18,726,047.80, 28,047,081.30 and 15,366,815.80

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Solution

The fourth proportional to 18,726,047.80, 28,047,081.30 and 15,366,815.80 is: 23,015,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726,047.80 : 28,047,081.30 = 15,366,815.80 : x
  2. Step 2: Convert to fraction form
    18,726,047.80/28,047,081.30 = 15,366,815.80/x
  3. Step 3: Cross multiply
    18,726,047.80x = 28,047,081.30 × 15,366,815.80
  4. Step 4: Simplify right side
    18,726,047.80x = 430,994,332,064,724.56
  5. Step 5: Solve for x
    x = 430,994,332,064,724.56/18,726,047.80
  6. Step 6: Final answer
    x = 23,015,765.88

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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.