Home / 285,261,687.87-393,670,860.83-159,819,173.25

Finding the Fourth Proportional to 285,261,687.87, 393,670,860.83 and 159,819,173.25

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Solution

The fourth proportional to 285,261,687.87, 393,670,860.83 and 159,819,173.25 is: 220,555,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,261,687.87 : 393,670,860.83 = 159,819,173.25 : x
  2. Step 2: Convert to fraction form
    285,261,687.87/393,670,860.83 = 159,819,173.25/x
  3. Step 3: Cross multiply
    285,261,687.87x = 393,670,860.83 × 159,819,173.25
  4. Step 4: Simplify right side
    285,261,687.87x = 62,916,151,509,690,144
  5. Step 5: Solve for x
    x = 62,916,151,509,690,144/285,261,687.87
  6. Step 6: Final answer
    x = 220,555,911.24

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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.