Finding the Fourth Proportional to 1,067,810,425.42, 1,474,089,365.12 and 711,171,704.97
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Solution
The fourth proportional to 1,067,810,425.42, 1,474,089,365.12 and 711,171,704.97 is: 981,757,268.99
Step by Step Solution
- Step 1: Write the proportion equation
1,067,810,425.42 : 1,474,089,365.12 = 711,171,704.97 : x - Step 2: Convert to fraction form
1,067,810,425.42/1,474,089,365.12 = 711,171,704.97/x - Step 3: Cross multiply
1,067,810,425.42x = 1,474,089,365.12 × 711,171,704.97 - Step 4: Simplify right side
1,067,810,425.42x = 1,048,330,647,064,942,720 - Step 5: Solve for x
x = 1,048,330,647,064,942,720/1,067,810,425.42 - Step 6: Final answer
x = 981,757,268.99
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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.