Finding the Fourth Proportional to 1,981,329,558.26, 2,734,236,549.56 and 1,089,271,462.17
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Solution
The fourth proportional to 1,981,329,558.26, 2,734,236,549.56 and 1,089,271,462.17 is: 1,503,195,584.92
Step by Step Solution
- Step 1: Write the proportion equation
1,981,329,558.26 : 2,734,236,549.56 = 1,089,271,462.17 : x - Step 2: Convert to fraction form
1,981,329,558.26/2,734,236,549.56 = 1,089,271,462.17/x - Step 3: Cross multiply
1,981,329,558.26x = 2,734,236,549.56 × 1,089,271,462.17 - Step 4: Simplify right side
1,981,329,558.26x = 2,978,325,844,248,635,904 - Step 5: Solve for x
x = 2,978,325,844,248,635,904/1,981,329,558.26 - Step 6: Final answer
x = 1,503,195,584.92
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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.