Home / 7,166,131-9,889,260.78-3,946,867

Finding the Fourth Proportional to 7,166,131, 9,889,260.78 and 3,946,867

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Solution

The fourth proportional to 7,166,131, 9,889,260.78 and 3,946,867 is: 5,446,676.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,166,131 : 9,889,260.78 = 3,946,867 : x
  2. Step 2: Convert to fraction form
    7,166,131/9,889,260.78 = 3,946,867/x
  3. Step 3: Cross multiply
    7,166,131x = 9,889,260.78 × 3,946,867
  4. Step 4: Simplify right side
    7,166,131x = 39,031,597,026,976.26
  5. Step 5: Solve for x
    x = 39,031,597,026,976.26/7,166,131
  6. Step 6: Final answer
    x = 5,446,676.46

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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.