Home / 18,792,062.40-28,188,071.73-5,145,313.62

Finding the Fourth Proportional to 18,792,062.40, 28,188,071.73 and 5,145,313.62

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Solution

The fourth proportional to 18,792,062.40, 28,188,071.73 and 5,145,313.62 is: 7,717,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,792,062.40 : 28,188,071.73 = 5,145,313.62 : x
  2. Step 2: Convert to fraction form
    18,792,062.40/28,188,071.73 = 5,145,313.62/x
  3. Step 3: Cross multiply
    18,792,062.40x = 28,188,071.73 × 5,145,313.62
  4. Step 4: Simplify right side
    18,792,062.40x = 145,036,469,393,905.97
  5. Step 5: Solve for x
    x = 145,036,469,393,905.97/18,792,062.40
  6. Step 6: Final answer
    x = 7,717,964.44

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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.