Home / 221,299,487.40-331,949,231.10-206,182,943.40

Finding the Fourth Proportional to 221,299,487.40, 331,949,231.10 and 206,182,943.40

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Solution

The fourth proportional to 221,299,487.40, 331,949,231.10 and 206,182,943.40 is: 309,274,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,299,487.40 : 331,949,231.10 = 206,182,943.40 : x
  2. Step 2: Convert to fraction form
    221,299,487.40/331,949,231.10 = 206,182,943.40/x
  3. Step 3: Cross multiply
    221,299,487.40x = 331,949,231.10 × 206,182,943.40
  4. Step 4: Simplify right side
    221,299,487.40x = 68,442,269,527,564,824
  5. Step 5: Solve for x
    x = 68,442,269,527,564,824/221,299,487.40
  6. Step 6: Final answer
    x = 309,274,415.10

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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.