Home / 299,448,911.20-449,173,366.80-146,015,989.60

Finding the Fourth Proportional to 299,448,911.20, 449,173,366.80 and 146,015,989.60

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Solution

The fourth proportional to 299,448,911.20, 449,173,366.80 and 146,015,989.60 is: 219,023,984.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,448,911.20 : 449,173,366.80 = 146,015,989.60 : x
  2. Step 2: Convert to fraction form
    299,448,911.20/449,173,366.80 = 146,015,989.60/x
  3. Step 3: Cross multiply
    299,448,911.20x = 449,173,366.80 × 146,015,989.60
  4. Step 4: Simplify right side
    299,448,911.20x = 65,586,493,655,265,784
  5. Step 5: Solve for x
    x = 65,586,493,655,265,784/299,448,911.20
  6. Step 6: Final answer
    x = 219,023,984.40

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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.