Finding the Fourth Proportional to 15,089,261.19, 20,821,993.21 and 8,562,890.62
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Solution
The fourth proportional to 15,089,261.19, 20,821,993.21 and 8,562,890.62 is: 11,816,115.32
Step by Step Solution
- Step 1: Write the proportion equation
15,089,261.19 : 20,821,993.21 = 8,562,890.62 : x - Step 2: Convert to fraction form
15,089,261.19/20,821,993.21 = 8,562,890.62/x - Step 3: Cross multiply
15,089,261.19x = 20,821,993.21 × 8,562,890.62 - Step 4: Simplify right side
15,089,261.19x = 178,296,450,347,612.69 - Step 5: Solve for x
x = 178,296,450,347,612.69/15,089,261.19 - Step 6: Final answer
x = 11,816,115.32
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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.