Finding the Fourth Proportional to 11,486,811.23, 15,851,799.50 and 6,330,172.78
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Solution
The fourth proportional to 11,486,811.23, 15,851,799.50 and 6,330,172.78 is: 8,735,638.44
Step by Step Solution
- Step 1: Write the proportion equation
11,486,811.23 : 15,851,799.50 = 6,330,172.78 : x - Step 2: Convert to fraction form
11,486,811.23/15,851,799.50 = 6,330,172.78/x - Step 3: Cross multiply
11,486,811.23x = 15,851,799.50 × 6,330,172.78 - Step 4: Simplify right side
11,486,811.23x = 100,344,629,750,495.48 - Step 5: Solve for x
x = 100,344,629,750,495.48/11,486,811.23 - Step 6: Final answer
x = 8,735,638.44
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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.