Home / 12,575,145.78-18,862,716.24-5,382,015.30

Finding the Fourth Proportional to 12,575,145.78, 18,862,716.24 and 5,382,015.30

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Solution

The fourth proportional to 12,575,145.78, 18,862,716.24 and 5,382,015.30 is: 8,073,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575,145.78 : 18,862,716.24 = 5,382,015.30 : x
  2. Step 2: Convert to fraction form
    12,575,145.78/18,862,716.24 = 5,382,015.30/x
  3. Step 3: Cross multiply
    12,575,145.78x = 18,862,716.24 × 5,382,015.30
  4. Step 4: Simplify right side
    12,575,145.78x = 101,519,427,403,238.45
  5. Step 5: Solve for x
    x = 101,519,427,403,238.45/12,575,145.78
  6. Step 6: Final answer
    x = 8,073,021.91

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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.