Home / 395,137,601.26-545,289,889.72-221,297,345.26

Finding the Fourth Proportional to 395,137,601.26, 545,289,889.72 and 221,297,345.26

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Solution

The fourth proportional to 395,137,601.26, 545,289,889.72 and 221,297,345.26 is: 305,390,336.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,137,601.26 : 545,289,889.72 = 221,297,345.26 : x
  2. Step 2: Convert to fraction form
    395,137,601.26/545,289,889.72 = 221,297,345.26/x
  3. Step 3: Cross multiply
    395,137,601.26x = 545,289,889.72 × 221,297,345.26
  4. Step 4: Simplify right side
    395,137,601.26x = 120,671,204,992,154,160
  5. Step 5: Solve for x
    x = 120,671,204,992,154,160/395,137,601.26
  6. Step 6: Final answer
    x = 305,390,336.45

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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.