Home / 3,946,990.78-5,446,847.76-2,136,154.78

Finding the Fourth Proportional to 3,946,990.78, 5,446,847.76 and 2,136,154.78

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Solution

The fourth proportional to 3,946,990.78, 5,446,847.76 and 2,136,154.78 is: 2,947,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946,990.78 : 5,446,847.76 = 2,136,154.78 : x
  2. Step 2: Convert to fraction form
    3,946,990.78/5,446,847.76 = 2,136,154.78/x
  3. Step 3: Cross multiply
    3,946,990.78x = 5,446,847.76 × 2,136,154.78
  4. Step 4: Simplify right side
    3,946,990.78x = 11,635,309,878,456.29
  5. Step 5: Solve for x
    x = 11,635,309,878,456.29/3,946,990.78
  6. Step 6: Final answer
    x = 2,947,893.86

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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.