Home / 221,021,763.87-330,842,945.37-162,795,188.43

Finding the Fourth Proportional to 221,021,763.87, 330,842,945.37 and 162,795,188.43

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Solution

The fourth proportional to 221,021,763.87, 330,842,945.37 and 162,795,188.43 is: 243,684,778.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,021,763.87 : 330,842,945.37 = 162,795,188.43 : x
  2. Step 2: Convert to fraction form
    221,021,763.87/330,842,945.37 = 162,795,188.43/x
  3. Step 3: Cross multiply
    221,021,763.87x = 330,842,945.37 × 162,795,188.43
  4. Step 4: Simplify right side
    221,021,763.87x = 53,859,639,632,245,352
  5. Step 5: Solve for x
    x = 53,859,639,632,245,352/221,021,763.87
  6. Step 6: Final answer
    x = 243,684,778.77

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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.