Finding the Fourth Proportional to 13,261,762.05, 18,294,532.60 and 7,751,536.95
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Solution
The fourth proportional to 13,261,762.05, 18,294,532.60 and 7,751,536.95 is: 10,693,205.39
Step by Step Solution
- Step 1: Write the proportion equation
13,261,762.05 : 18,294,532.60 = 7,751,536.95 : x - Step 2: Convert to fraction form
13,261,762.05/18,294,532.60 = 7,751,536.95/x - Step 3: Cross multiply
13,261,762.05x = 18,294,532.60 × 7,751,536.95 - Step 4: Simplify right side
13,261,762.05x = 141,810,745,412,500.72 - Step 5: Solve for x
x = 141,810,745,412,500.72/13,261,762.05 - Step 6: Final answer
x = 10,693,205.39
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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.