Finding the Fourth Proportional to 214,089,415.20, 321,134,122.80 and 112,052,743.20
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Solution
The fourth proportional to 214,089,415.20, 321,134,122.80 and 112,052,743.20 is: 168,079,114.80
Step by Step Solution
- Step 1: Write the proportion equation
214,089,415.20 : 321,134,122.80 = 112,052,743.20 : x - Step 2: Convert to fraction form
214,089,415.20/321,134,122.80 = 112,052,743.20/x - Step 3: Cross multiply
214,089,415.20x = 321,134,122.80 × 112,052,743.20 - Step 4: Simplify right side
214,089,415.20x = 35,983,959,394,865,668 - Step 5: Solve for x
x = 35,983,959,394,865,668/214,089,415.20 - Step 6: Final answer
x = 168,079,114.80
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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.