Home / 221,260,220.20-331,890,330.30-199,341,231.40

Finding the Fourth Proportional to 221,260,220.20, 331,890,330.30 and 199,341,231.40

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Solution

The fourth proportional to 221,260,220.20, 331,890,330.30 and 199,341,231.40 is: 299,011,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,260,220.20 : 331,890,330.30 = 199,341,231.40 : x
  2. Step 2: Convert to fraction form
    221,260,220.20/331,890,330.30 = 199,341,231.40/x
  3. Step 3: Cross multiply
    221,260,220.20x = 331,890,330.30 × 199,341,231.40
  4. Step 4: Simplify right side
    221,260,220.20x = 66,159,427,131,754,736
  5. Step 5: Solve for x
    x = 66,159,427,131,754,736/221,260,220.20
  6. Step 6: Final answer
    x = 299,011,847.10

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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.