Home / 3,986,021.80-5,977,866.30-1,426,940.20

Finding the Fourth Proportional to 3,986,021.80, 5,977,866.30 and 1,426,940.20

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Solution

The fourth proportional to 3,986,021.80, 5,977,866.30 and 1,426,940.20 is: 2,139,992.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,986,021.80 : 5,977,866.30 = 1,426,940.20 : x
  2. Step 2: Convert to fraction form
    3,986,021.80/5,977,866.30 = 1,426,940.20/x
  3. Step 3: Cross multiply
    3,986,021.80x = 5,977,866.30 × 1,426,940.20
  4. Step 4: Simplify right side
    3,986,021.80x = 8,530,057,733,695.26
  5. Step 5: Solve for x
    x = 8,530,057,733,695.26/3,986,021.80
  6. Step 6: Final answer
    x = 2,139,992.75

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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.