Home / 18,601,127.80-27,907,027.98-7,812,880.36

Finding the Fourth Proportional to 18,601,127.80, 27,907,027.98 and 7,812,880.36

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Solution

The fourth proportional to 18,601,127.80, 27,907,027.98 and 7,812,880.36 is: 11,721,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601,127.80 : 27,907,027.98 = 7,812,880.36 : x
  2. Step 2: Convert to fraction form
    18,601,127.80/27,907,027.98 = 7,812,880.36/x
  3. Step 3: Cross multiply
    18,601,127.80x = 27,907,027.98 × 7,812,880.36
  4. Step 4: Simplify right side
    18,601,127.80x = 218,034,270,810,912.50
  5. Step 5: Solve for x
    x = 218,034,270,810,912.50/18,601,127.80
  6. Step 6: Final answer
    x = 11,721,561.89

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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.