Home / 394,321,670.40-543,982,864.32-255,137,802.24

Finding the Fourth Proportional to 394,321,670.40, 543,982,864.32 and 255,137,802.24

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Solution

The fourth proportional to 394,321,670.40, 543,982,864.32 and 255,137,802.24 is: 351,973,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,321,670.40 : 543,982,864.32 = 255,137,802.24 : x
  2. Step 2: Convert to fraction form
    394,321,670.40/543,982,864.32 = 255,137,802.24/x
  3. Step 3: Cross multiply
    394,321,670.40x = 543,982,864.32 × 255,137,802.24
  4. Step 4: Simplify right side
    394,321,670.40x = 138,790,592,458,824,928
  5. Step 5: Solve for x
    x = 138,790,592,458,824,928/394,321,670.40
  6. Step 6: Final answer
    x = 351,973,028.31

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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.