Home / 557,192,107.76-768,942,319.61-306,315,669.33

Finding the Fourth Proportional to 557,192,107.76, 768,942,319.61 and 306,315,669.33

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Solution

The fourth proportional to 557,192,107.76, 768,942,319.61 and 306,315,669.33 is: 422,725,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,192,107.76 : 768,942,319.61 = 306,315,669.33 : x
  2. Step 2: Convert to fraction form
    557,192,107.76/768,942,319.61 = 306,315,669.33/x
  3. Step 3: Cross multiply
    557,192,107.76x = 768,942,319.61 × 306,315,669.33
  4. Step 4: Simplify right side
    557,192,107.76x = 235,539,081,306,544,192
  5. Step 5: Solve for x
    x = 235,539,081,306,544,192/557,192,107.76
  6. Step 6: Final answer
    x = 422,725,085.34

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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.