Home / 397,009,160.15-547,887,758.49-220,809,896.60

Finding the Fourth Proportional to 397,009,160.15, 547,887,758.49 and 220,809,896.60

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Solution

The fourth proportional to 397,009,160.15, 547,887,758.49 and 220,809,896.60 is: 304,726,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,009,160.15 : 547,887,758.49 = 220,809,896.60 : x
  2. Step 2: Convert to fraction form
    397,009,160.15/547,887,758.49 = 220,809,896.60/x
  3. Step 3: Cross multiply
    397,009,160.15x = 547,887,758.49 × 220,809,896.60
  4. Step 4: Simplify right side
    397,009,160.15x = 120,979,039,297,843,232
  5. Step 5: Solve for x
    x = 120,979,039,297,843,232/397,009,160.15
  6. Step 6: Final answer
    x = 304,726,065.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.