Home / 388,336,511.20-582,728,715.60-146,173,208.80

Finding the Fourth Proportional to 388,336,511.20, 582,728,715.60 and 146,173,208.80

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Solution

The fourth proportional to 388,336,511.20, 582,728,715.60 and 146,173,208.80 is: 219,344,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,336,511.20 : 582,728,715.60 = 146,173,208.80 : x
  2. Step 2: Convert to fraction form
    388,336,511.20/582,728,715.60 = 146,173,208.80/x
  3. Step 3: Cross multiply
    388,336,511.20x = 582,728,715.60 × 146,173,208.80
  4. Step 4: Simplify right side
    388,336,511.20x = 85,179,326,219,154,624
  5. Step 5: Solve for x
    x = 85,179,326,219,154,624/388,336,511.20
  6. Step 6: Final answer
    x = 219,344,109.46

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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.