Home / 395,137,532.25-545,289,794.51-221,297,276.25

Finding the Fourth Proportional to 395,137,532.25, 545,289,794.51 and 221,297,276.25

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Solution

The fourth proportional to 395,137,532.25, 545,289,794.51 and 221,297,276.25 is: 305,390,241.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,137,532.25 : 545,289,794.51 = 221,297,276.25 : x
  2. Step 2: Convert to fraction form
    395,137,532.25/545,289,794.51 = 221,297,276.25/x
  3. Step 3: Cross multiply
    395,137,532.25x = 545,289,794.51 × 221,297,276.25
  4. Step 4: Simplify right side
    395,137,532.25x = 120,671,146,290,878,720
  5. Step 5: Solve for x
    x = 120,671,146,290,878,720/395,137,532.25
  6. Step 6: Final answer
    x = 305,390,241.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.