Home / 388,439,687.20-582,491,569.20-194,276,077.60

Finding the Fourth Proportional to 388,439,687.20, 582,491,569.20 and 194,276,077.60

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Solution

The fourth proportional to 388,439,687.20, 582,491,569.20 and 194,276,077.60 is: 291,330,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,439,687.20 : 582,491,569.20 = 194,276,077.60 : x
  2. Step 2: Convert to fraction form
    388,439,687.20/582,491,569.20 = 194,276,077.60/x
  3. Step 3: Cross multiply
    388,439,687.20x = 582,491,569.20 × 194,276,077.60
  4. Step 4: Simplify right side
    388,439,687.20x = 113,164,177,299,244,976
  5. Step 5: Solve for x
    x = 113,164,177,299,244,976/388,439,687.20
  6. Step 6: Final answer
    x = 291,330,111.28

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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.