Finding the Fourth Proportional to 11,555,072.96, 15,945,976.31 and 6,660,261.99
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Solution
The fourth proportional to 11,555,072.96, 15,945,976.31 and 6,660,261.99 is: 9,191,147.50
Step by Step Solution
- Step 1: Write the proportion equation
11,555,072.96 : 15,945,976.31 = 6,660,261.99 : x - Step 2: Convert to fraction form
11,555,072.96/15,945,976.31 = 6,660,261.99/x - Step 3: Cross multiply
11,555,072.96x = 15,945,976.31 × 6,660,261.99 - Step 4: Simplify right side
11,555,072.96x = 106,204,379,877,632.16 - Step 5: Solve for x
x = 106,204,379,877,632.16/11,555,072.96 - Step 6: Final answer
x = 9,191,147.50
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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.