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Finding the Fourth Proportional to 350,607,481.52, 483,993,299.40 and 209,528,485.52

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Solution

The fourth proportional to 350,607,481.52, 483,993,299.40 and 209,528,485.52 is: 289,241,925.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,607,481.52 : 483,993,299.40 = 209,528,485.52 : x
  2. Step 2: Convert to fraction form
    350,607,481.52/483,993,299.40 = 209,528,485.52/x
  3. Step 3: Cross multiply
    350,607,481.52x = 483,993,299.40 × 209,528,485.52
  4. Step 4: Simplify right side
    350,607,481.52x = 101,410,383,025,109,920
  5. Step 5: Solve for x
    x = 101,410,383,025,109,920/350,607,481.52
  6. Step 6: Final answer
    x = 289,241,925.43

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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.