Home / 220,018,919.05-330,028,439.73-81,826,470.25

Finding the Fourth Proportional to 220,018,919.05, 330,028,439.73 and 81,826,470.25

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Solution

The fourth proportional to 220,018,919.05, 330,028,439.73 and 81,826,470.25 is: 122,739,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,018,919.05 : 330,028,439.73 = 81,826,470.25 : x
  2. Step 2: Convert to fraction form
    220,018,919.05/330,028,439.73 = 81,826,470.25/x
  3. Step 3: Cross multiply
    220,018,919.05x = 330,028,439.73 × 81,826,470.25
  4. Step 4: Simplify right side
    220,018,919.05x = 27,005,062,305,220,764
  5. Step 5: Solve for x
    x = 27,005,062,305,220,764/220,018,919.05
  6. Step 6: Final answer
    x = 122,739,728.12

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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.