Home / 74,629,579.20-111,944,368.80-68,172,571.05

Finding the Fourth Proportional to 74,629,579.20, 111,944,368.80 and 68,172,571.05

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Solution

The fourth proportional to 74,629,579.20, 111,944,368.80 and 68,172,571.05 is: 102,258,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,629,579.20 : 111,944,368.80 = 68,172,571.05 : x
  2. Step 2: Convert to fraction form
    74,629,579.20/111,944,368.80 = 68,172,571.05/x
  3. Step 3: Cross multiply
    74,629,579.20x = 111,944,368.80 × 68,172,571.05
  4. Step 4: Simplify right side
    74,629,579.20x = 7,631,535,435,665,403
  5. Step 5: Solve for x
    x = 7,631,535,435,665,403/74,629,579.20
  6. Step 6: Final answer
    x = 102,258,856.58

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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.