Home / 188,987,724.87-260,789,742.73-105,352,155.97

Finding the Fourth Proportional to 188,987,724.87, 260,789,742.73 and 105,352,155.97

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Solution

The fourth proportional to 188,987,724.87, 260,789,742.73 and 105,352,155.97 is: 145,378,551.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,987,724.87 : 260,789,742.73 = 105,352,155.97 : x
  2. Step 2: Convert to fraction form
    188,987,724.87/260,789,742.73 = 105,352,155.97/x
  3. Step 3: Cross multiply
    188,987,724.87x = 260,789,742.73 × 105,352,155.97
  4. Step 4: Simplify right side
    188,987,724.87x = 27,474,761,650,946,848
  5. Step 5: Solve for x
    x = 27,474,761,650,946,848/188,987,724.87
  6. Step 6: Final answer
    x = 145,378,551.28

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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.