Finding the Fourth Proportional to 38,702,791.44, 53,409,836.73 and 21,299,136.64
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Solution
The fourth proportional to 38,702,791.44, 53,409,836.73 and 21,299,136.64 is: 29,392,800.06
Step by Step Solution
- Step 1: Write the proportion equation
38,702,791.44 : 53,409,836.73 = 21,299,136.64 : x - Step 2: Convert to fraction form
38,702,791.44/53,409,836.73 = 21,299,136.64/x - Step 3: Cross multiply
38,702,791.44x = 53,409,836.73 × 21,299,136.64 - Step 4: Simplify right side
38,702,791.44x = 1,137,583,410,378,708 - Step 5: Solve for x
x = 1,137,583,410,378,708/38,702,791.44 - Step 6: Final answer
x = 29,392,800.06
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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.