Home / 285,261,752-393,670,949.28-159,819,237.56

Finding the Fourth Proportional to 285,261,752, 393,670,949.28 and 159,819,237.56

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Solution

The fourth proportional to 285,261,752, 393,670,949.28 and 159,819,237.56 is: 220,555,999.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,261,752 : 393,670,949.28 = 159,819,237.56 : x
  2. Step 2: Convert to fraction form
    285,261,752/393,670,949.28 = 159,819,237.56/x
  3. Step 3: Cross multiply
    285,261,752x = 393,670,949.28 × 159,819,237.56
  4. Step 4: Simplify right side
    285,261,752x = 62,916,190,963,451,024
  5. Step 5: Solve for x
    x = 62,916,190,963,451,024/285,261,752
  6. Step 6: Final answer
    x = 220,555,999.96

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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.