Home / 388,410,390.90-582,615,918.05-108,280,199.88

Finding the Fourth Proportional to 388,410,390.90, 582,615,918.05 and 108,280,199.88

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Solution

The fourth proportional to 388,410,390.90, 582,615,918.05 and 108,280,199.88 is: 162,420,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,410,390.90 : 582,615,918.05 = 108,280,199.88 : x
  2. Step 2: Convert to fraction form
    388,410,390.90/582,615,918.05 = 108,280,199.88/x
  3. Step 3: Cross multiply
    388,410,390.90x = 582,615,918.05 × 108,280,199.88
  4. Step 4: Simplify right side
    388,410,390.90x = 63,085,768,059,182,288
  5. Step 5: Solve for x
    x = 63,085,768,059,182,288/388,410,390.90
  6. Step 6: Final answer
    x = 162,420,392.29

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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.