Home / 388,346,952.80-582,520,429.20-349,379,861.60

Finding the Fourth Proportional to 388,346,952.80, 582,520,429.20 and 349,379,861.60

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Solution

The fourth proportional to 388,346,952.80, 582,520,429.20 and 349,379,861.60 is: 524,069,792.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,346,952.80 : 582,520,429.20 = 349,379,861.60 : x
  2. Step 2: Convert to fraction form
    388,346,952.80/582,520,429.20 = 349,379,861.60/x
  3. Step 3: Cross multiply
    388,346,952.80x = 582,520,429.20 × 349,379,861.60
  4. Step 4: Simplify right side
    388,346,952.80x = 203,520,906,933,068,640
  5. Step 5: Solve for x
    x = 203,520,906,933,068,640/388,346,952.80
  6. Step 6: Final answer
    x = 524,069,792.40

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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.