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Finding the Fourth Proportional to 388,484,906.10, 582,727,359.15 and 388,484,906.10

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Solution

The fourth proportional to 388,484,906.10, 582,727,359.15 and 388,484,906.10 is: 582,727,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,484,906.10 : 582,727,359.15 = 388,484,906.10 : x
  2. Step 2: Convert to fraction form
    388,484,906.10/582,727,359.15 = 388,484,906.10/x
  3. Step 3: Cross multiply
    388,484,906.10x = 582,727,359.15 × 388,484,906.10
  4. Step 4: Simplify right side
    388,484,906.10x = 226,380,783,401,288,736
  5. Step 5: Solve for x
    x = 226,380,783,401,288,736/388,484,906.10
  6. Step 6: Final answer
    x = 582,727,359.15

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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.