Home / 656,475,728.33-905,933,796.66-355,061,376.47

Finding the Fourth Proportional to 656,475,728.33, 905,933,796.66 and 355,061,376.47

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Solution

The fourth proportional to 656,475,728.33, 905,933,796.66 and 355,061,376.47 is: 489,983,234.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,475,728.33 : 905,933,796.66 = 355,061,376.47 : x
  2. Step 2: Convert to fraction form
    656,475,728.33/905,933,796.66 = 355,061,376.47/x
  3. Step 3: Cross multiply
    656,475,728.33x = 905,933,796.66 × 355,061,376.47
  4. Step 4: Simplify right side
    656,475,728.33x = 321,662,100,828,262,976
  5. Step 5: Solve for x
    x = 321,662,100,828,262,976/656,475,728.33
  6. Step 6: Final answer
    x = 489,983,234.64

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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.