Home / 2,112,014.80-3,163,721.40-1,310,837.20

Finding the Fourth Proportional to 2,112,014.80, 3,163,721.40 and 1,310,837.20

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Solution

The fourth proportional to 2,112,014.80, 3,163,721.40 and 1,310,837.20 is: 1,963,586.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,112,014.80 : 3,163,721.40 = 1,310,837.20 : x
  2. Step 2: Convert to fraction form
    2,112,014.80/3,163,721.40 = 1,310,837.20/x
  3. Step 3: Cross multiply
    2,112,014.80x = 3,163,721.40 × 1,310,837.20
  4. Step 4: Simplify right side
    2,112,014.80x = 4,147,123,701,556.08
  5. Step 5: Solve for x
    x = 4,147,123,701,556.08/2,112,014.80
  6. Step 6: Final answer
    x = 1,963,586.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.