Home / 221,293,874.20-331,940,811.30-67,939,684.60

Finding the Fourth Proportional to 221,293,874.20, 331,940,811.30 and 67,939,684.60

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Solution

The fourth proportional to 221,293,874.20, 331,940,811.30 and 67,939,684.60 is: 101,909,526.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,293,874.20 : 331,940,811.30 = 67,939,684.60 : x
  2. Step 2: Convert to fraction form
    221,293,874.20/331,940,811.30 = 67,939,684.60/x
  3. Step 3: Cross multiply
    221,293,874.20x = 331,940,811.30 × 67,939,684.60
  4. Step 4: Simplify right side
    221,293,874.20x = 22,551,954,025,590,116
  5. Step 5: Solve for x
    x = 22,551,954,025,590,116/221,293,874.20
  6. Step 6: Final answer
    x = 101,909,526.90

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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.