Home / 388,439,500.20-582,491,288.70-194,275,890.60

Finding the Fourth Proportional to 388,439,500.20, 582,491,288.70 and 194,275,890.60

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Solution

The fourth proportional to 388,439,500.20, 582,491,288.70 and 194,275,890.60 is: 291,329,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,439,500.20 : 582,491,288.70 = 194,275,890.60 : x
  2. Step 2: Convert to fraction form
    388,439,500.20/582,491,288.70 = 194,275,890.60/x
  3. Step 3: Cross multiply
    388,439,500.20x = 582,491,288.70 × 194,275,890.60
  4. Step 4: Simplify right side
    388,439,500.20x = 113,164,013,878,934,224
  5. Step 5: Solve for x
    x = 113,164,013,878,934,224/388,439,500.20
  6. Step 6: Final answer
    x = 291,329,830.82

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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.