Home / 21,121,847.98-31,686,348.78-7,285,049.59

Finding the Fourth Proportional to 21,121,847.98, 31,686,348.78 and 7,285,049.59

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Solution

The fourth proportional to 21,121,847.98, 31,686,348.78 and 7,285,049.59 is: 10,928,808.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,847.98 : 31,686,348.78 = 7,285,049.59 : x
  2. Step 2: Convert to fraction form
    21,121,847.98/31,686,348.78 = 7,285,049.59/x
  3. Step 3: Cross multiply
    21,121,847.98x = 31,686,348.78 × 7,285,049.59
  4. Step 4: Simplify right side
    21,121,847.98x = 230,836,622,188,336
  5. Step 5: Solve for x
    x = 230,836,622,188,336/21,121,847.98
  6. Step 6: Final answer
    x = 10,928,808.05

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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.