Home / 388,410,386.40-582,615,911.30-108,280,195.38

Finding the Fourth Proportional to 388,410,386.40, 582,615,911.30 and 108,280,195.38

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Solution

The fourth proportional to 388,410,386.40, 582,615,911.30 and 108,280,195.38 is: 162,420,385.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,410,386.40 : 582,615,911.30 = 108,280,195.38 : x
  2. Step 2: Convert to fraction form
    388,410,386.40/582,615,911.30 = 108,280,195.38/x
  3. Step 3: Cross multiply
    388,410,386.40x = 582,615,911.30 × 108,280,195.38
  4. Step 4: Simplify right side
    388,410,386.40x = 63,085,764,706,519,344
  5. Step 5: Solve for x
    x = 63,085,764,706,519,344/388,410,386.40
  6. Step 6: Final answer
    x = 162,420,385.54

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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.