Finding the Fourth Proportional to 13,431,531.14, 18,536,170.05 and 7,553,015.31
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Solution
The fourth proportional to 13,431,531.14, 18,536,170.05 and 7,553,015.31 is: 10,423,530.63
Step by Step Solution
- Step 1: Write the proportion equation
13,431,531.14 : 18,536,170.05 = 7,553,015.31 : x - Step 2: Convert to fraction form
13,431,531.14/18,536,170.05 = 7,553,015.31/x - Step 3: Cross multiply
13,431,531.14x = 18,536,170.05 × 7,553,015.31 - Step 4: Simplify right side
13,431,531.14x = 140,003,976,176,413.47 - Step 5: Solve for x
x = 140,003,976,176,413.47/13,431,531.14 - Step 6: Final answer
x = 10,423,530.63
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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.