Home / 220,019,002.80-330,028,565.32-81,826,553.96

Finding the Fourth Proportional to 220,019,002.80, 330,028,565.32 and 81,826,553.96

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Solution

The fourth proportional to 220,019,002.80, 330,028,565.32 and 81,826,553.96 is: 122,739,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,019,002.80 : 330,028,565.32 = 81,826,553.96 : x
  2. Step 2: Convert to fraction form
    220,019,002.80/330,028,565.32 = 81,826,553.96/x
  3. Step 3: Cross multiply
    220,019,002.80x = 330,028,565.32 × 81,826,553.96
  4. Step 4: Simplify right side
    220,019,002.80x = 27,005,100,208,498,360
  5. Step 5: Solve for x
    x = 27,005,100,208,498,360/220,019,002.80
  6. Step 6: Final answer
    x = 122,739,853.67

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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.