Home / 543,884,339.54-815,825,489.72-170,420,817.84

Finding the Fourth Proportional to 543,884,339.54, 815,825,489.72 and 170,420,817.84

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Solution

The fourth proportional to 543,884,339.54, 815,825,489.72 and 170,420,817.84 is: 255,630,907.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,884,339.54 : 815,825,489.72 = 170,420,817.84 : x
  2. Step 2: Convert to fraction form
    543,884,339.54/815,825,489.72 = 170,420,817.84/x
  3. Step 3: Cross multiply
    543,884,339.54x = 815,825,489.72 × 170,420,817.84
  4. Step 4: Simplify right side
    543,884,339.54x = 139,033,647,172,800,928
  5. Step 5: Solve for x
    x = 139,033,647,172,800,928/543,884,339.54
  6. Step 6: Final answer
    x = 255,630,907.28

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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.