Home / 395,137,596-545,289,882.48-221,297,340

Finding the Fourth Proportional to 395,137,596, 545,289,882.48 and 221,297,340

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Solution

The fourth proportional to 395,137,596, 545,289,882.48 and 221,297,340 is: 305,390,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,137,596 : 545,289,882.48 = 221,297,340 : x
  2. Step 2: Convert to fraction form
    395,137,596/545,289,882.48 = 221,297,340/x
  3. Step 3: Cross multiply
    395,137,596x = 545,289,882.48 × 221,297,340
  4. Step 4: Simplify right side
    395,137,596x = 120,671,200,521,736,608
  5. Step 5: Solve for x
    x = 120,671,200,521,736,608/395,137,596
  6. Step 6: Final answer
    x = 305,390,329.20

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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.