Home / 285,261,750-393,670,946.52-159,819,235.56

Finding the Fourth Proportional to 285,261,750, 393,670,946.52 and 159,819,235.56

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Solution

The fourth proportional to 285,261,750, 393,670,946.52 and 159,819,235.56 is: 220,555,997.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,261,750 : 393,670,946.52 = 159,819,235.56 : x
  2. Step 2: Convert to fraction form
    285,261,750/393,670,946.52 = 159,819,235.56/x
  3. Step 3: Cross multiply
    285,261,750x = 393,670,946.52 × 159,819,235.56
  4. Step 4: Simplify right side
    285,261,750x = 62,916,189,735,008,040
  5. Step 5: Solve for x
    x = 62,916,189,735,008,040/285,261,750
  6. Step 6: Final answer
    x = 220,555,997.20

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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.