Home / 285,139,006.48-393,424,385.34-161,379,679.96

Finding the Fourth Proportional to 285,139,006.48, 393,424,385.34 and 161,379,679.96

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Solution

The fourth proportional to 285,139,006.48, 393,424,385.34 and 161,379,679.96 is: 222,665,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,139,006.48 : 393,424,385.34 = 161,379,679.96 : x
  2. Step 2: Convert to fraction form
    285,139,006.48/393,424,385.34 = 161,379,679.96/x
  3. Step 3: Cross multiply
    285,139,006.48x = 393,424,385.34 × 161,379,679.96
  4. Step 4: Simplify right side
    285,139,006.48x = 63,490,701,394,628,912
  5. Step 5: Solve for x
    x = 63,490,701,394,628,912/285,139,006.48
  6. Step 6: Final answer
    x = 222,665,787.39

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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.