Finding the Fourth Proportional to 13,013,434.24, 17,958,540.95 and 7,212,590.48
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Solution
The fourth proportional to 13,013,434.24, 17,958,540.95 and 7,212,590.48 is: 9,953,375.81
Step by Step Solution
- Step 1: Write the proportion equation
13,013,434.24 : 17,958,540.95 = 7,212,590.48 : x - Step 2: Convert to fraction form
13,013,434.24/17,958,540.95 = 7,212,590.48/x - Step 3: Cross multiply
13,013,434.24x = 17,958,540.95 × 7,212,590.48 - Step 4: Simplify right side
13,013,434.24x = 129,527,601,526,540.77 - Step 5: Solve for x
x = 129,527,601,526,540.77/13,013,434.24 - Step 6: Final answer
x = 9,953,375.81
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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.