Finding the Fourth Proportional to 1,981,329,704.74, 2,734,236,751.44 and 1,089,271,608.49
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Solution
The fourth proportional to 1,981,329,704.74, 2,734,236,751.44 and 1,089,271,608.49 is: 1,503,195,786.70
Step by Step Solution
- Step 1: Write the proportion equation
1,981,329,704.74 : 2,734,236,751.44 = 1,089,271,608.49 : x - Step 2: Convert to fraction form
1,981,329,704.74/2,734,236,751.44 = 1,089,271,608.49/x - Step 3: Cross multiply
1,981,329,704.74x = 2,734,236,751.44 × 1,089,271,608.49 - Step 4: Simplify right side
1,981,329,704.74x = 2,978,326,464,233,521,152 - Step 5: Solve for x
x = 2,978,326,464,233,521,152/1,981,329,704.74 - Step 6: Final answer
x = 1,503,195,786.70
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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.