Home / 258,947,046.80-388,569,869.40-97,504,845.20

Finding the Fourth Proportional to 258,947,046.80, 388,569,869.40 and 97,504,845.20

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Solution

The fourth proportional to 258,947,046.80, 388,569,869.40 and 97,504,845.20 is: 146,313,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,947,046.80 : 388,569,869.40 = 97,504,845.20 : x
  2. Step 2: Convert to fraction form
    258,947,046.80/388,569,869.40 = 97,504,845.20/x
  3. Step 3: Cross multiply
    258,947,046.80x = 388,569,869.40 × 97,504,845.20
  4. Step 4: Simplify right side
    258,947,046.80x = 37,887,444,965,231,216
  5. Step 5: Solve for x
    x = 37,887,444,965,231,216/258,947,046.80
  6. Step 6: Final answer
    x = 146,313,485.45

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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.