Home / 18,601,128.80-27,907,029.48-7,812,881.36

Finding the Fourth Proportional to 18,601,128.80, 27,907,029.48 and 7,812,881.36

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Solution

The fourth proportional to 18,601,128.80, 27,907,029.48 and 7,812,881.36 is: 11,721,563.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601,128.80 : 27,907,029.48 = 7,812,881.36 : x
  2. Step 2: Convert to fraction form
    18,601,128.80/27,907,029.48 = 7,812,881.36/x
  3. Step 3: Cross multiply
    18,601,128.80x = 27,907,029.48 × 7,812,881.36
  4. Step 4: Simplify right side
    18,601,128.80x = 218,034,310,437,262.50
  5. Step 5: Solve for x
    x = 218,034,310,437,262.50/18,601,128.80
  6. Step 6: Final answer
    x = 11,721,563.39

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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.