Finding the Fourth Proportional to 11,330,728.80, 15,635,916.60 and 6,435,935.58
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Solution
The fourth proportional to 11,330,728.80, 15,635,916.60 and 6,435,935.58 is: 8,881,313.26
Step by Step Solution
- Step 1: Write the proportion equation
11,330,728.80 : 15,635,916.60 = 6,435,935.58 : x - Step 2: Convert to fraction form
11,330,728.80/15,635,916.60 = 6,435,935.58/x - Step 3: Cross multiply
11,330,728.80x = 15,635,916.60 × 6,435,935.58 - Step 4: Simplify right side
11,330,728.80x = 100,631,751,971,852.62 - Step 5: Solve for x
x = 100,631,751,971,852.62/11,330,728.80 - Step 6: Final answer
x = 8,881,313.26
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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.