Finding the Fourth Proportional to 12,853,791.53, 17,738,230.39 and 7,347,284.63
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Solution
The fourth proportional to 12,853,791.53, 17,738,230.39 and 7,347,284.63 is: 10,139,251.69
Step by Step Solution
- Step 1: Write the proportion equation
12,853,791.53 : 17,738,230.39 = 7,347,284.63 : x - Step 2: Convert to fraction form
12,853,791.53/17,738,230.39 = 7,347,284.63/x - Step 3: Cross multiply
12,853,791.53x = 17,738,230.39 × 7,347,284.63 - Step 4: Simplify right side
12,853,791.53x = 130,327,827,400,786.53 - Step 5: Solve for x
x = 130,327,827,400,786.53/12,853,791.53 - Step 6: Final answer
x = 10,139,251.69
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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.