Home / 12,131,786.31-18,192,620.19-4,938,437.13

Finding the Fourth Proportional to 12,131,786.31, 18,192,620.19 and 4,938,437.13

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Solution

The fourth proportional to 12,131,786.31, 18,192,620.19 and 4,938,437.13 is: 7,405,596.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,786.31 : 18,192,620.19 = 4,938,437.13 : x
  2. Step 2: Convert to fraction form
    12,131,786.31/18,192,620.19 = 4,938,437.13/x
  3. Step 3: Cross multiply
    12,131,786.31x = 18,192,620.19 × 4,938,437.13
  4. Step 4: Simplify right side
    12,131,786.31x = 89,843,111,038,283.66
  5. Step 5: Solve for x
    x = 89,843,111,038,283.66/12,131,786.31
  6. Step 6: Final answer
    x = 7,405,596.24

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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.