Home / 509,970,608.33-765,144,869.30-203,482,678.73

Finding the Fourth Proportional to 509,970,608.33, 765,144,869.30 and 203,482,678.73

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Solution

The fourth proportional to 509,970,608.33, 765,144,869.30 and 203,482,678.73 is: 305,299,413.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,970,608.33 : 765,144,869.30 = 203,482,678.73 : x
  2. Step 2: Convert to fraction form
    509,970,608.33/765,144,869.30 = 203,482,678.73/x
  3. Step 3: Cross multiply
    509,970,608.33x = 765,144,869.30 × 203,482,678.73
  4. Step 4: Simplify right side
    509,970,608.33x = 155,693,727,616,836,576
  5. Step 5: Solve for x
    x = 155,693,727,616,836,576/509,970,608.33
  6. Step 6: Final answer
    x = 305,299,413.49

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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.