Home / 220,018,918.05-330,028,438.23-81,826,469.25

Finding the Fourth Proportional to 220,018,918.05, 330,028,438.23 and 81,826,469.25

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Solution

The fourth proportional to 220,018,918.05, 330,028,438.23 and 81,826,469.25 is: 122,739,726.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,018,918.05 : 330,028,438.23 = 81,826,469.25 : x
  2. Step 2: Convert to fraction form
    220,018,918.05/330,028,438.23 = 81,826,469.25/x
  3. Step 3: Cross multiply
    220,018,918.05x = 330,028,438.23 × 81,826,469.25
  4. Step 4: Simplify right side
    220,018,918.05x = 27,005,061,852,452,620
  5. Step 5: Solve for x
    x = 27,005,061,852,452,620/220,018,918.05
  6. Step 6: Final answer
    x = 122,739,726.62

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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.