Home / 30,351,937.78-41,859,203.24-21,513,907.88

Finding the Fourth Proportional to 30,351,937.78, 41,859,203.24 and 21,513,907.88

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Solution

The fourth proportional to 30,351,937.78, 41,859,203.24 and 21,513,907.88 is: 29,670,429.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,351,937.78 : 41,859,203.24 = 21,513,907.88 : x
  2. Step 2: Convert to fraction form
    30,351,937.78/41,859,203.24 = 21,513,907.88/x
  3. Step 3: Cross multiply
    30,351,937.78x = 41,859,203.24 × 21,513,907.88
  4. Step 4: Simplify right side
    30,351,937.78x = 900,555,042,198,252.62
  5. Step 5: Solve for x
    x = 900,555,042,198,252.62/30,351,937.78
  6. Step 6: Final answer
    x = 29,670,429.90

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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.