Home / 30,920,109.79-46,380,138.28-7,891,042.46

Finding the Fourth Proportional to 30,920,109.79, 46,380,138.28 and 7,891,042.46

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Solution

The fourth proportional to 30,920,109.79, 46,380,138.28 and 7,891,042.46 is: 11,836,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920,109.79 : 46,380,138.28 = 7,891,042.46 : x
  2. Step 2: Convert to fraction form
    30,920,109.79/46,380,138.28 = 7,891,042.46/x
  3. Step 3: Cross multiply
    30,920,109.79x = 46,380,138.28 × 7,891,042.46
  4. Step 4: Simplify right side
    30,920,109.79x = 365,987,640,505,668.62
  5. Step 5: Solve for x
    x = 365,987,640,505,668.62/30,920,109.79
  6. Step 6: Final answer
    x = 11,836,556.95

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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.