Home / 3,940,720.78-5,911,330.38-1,665,821.20

Finding the Fourth Proportional to 3,940,720.78, 5,911,330.38 and 1,665,821.20

Calculator

Solution

The fourth proportional to 3,940,720.78, 5,911,330.38 and 1,665,821.20 is: 2,498,837.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,720.78 : 5,911,330.38 = 1,665,821.20 : x
  2. Step 2: Convert to fraction form
    3,940,720.78/5,911,330.38 = 1,665,821.20/x
  3. Step 3: Cross multiply
    3,940,720.78x = 5,911,330.38 × 1,665,821.20
  4. Step 4: Simplify right side
    3,940,720.78x = 9,847,219,467,208.06
  5. Step 5: Solve for x
    x = 9,847,219,467,208.06/3,940,720.78
  6. Step 6: Final answer
    x = 2,498,837.15

Related Problems

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.