Finding the Fourth Proportional to 13,674,349.93, 18,876,413.34 and 8,520,257.98
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Solution
The fourth proportional to 13,674,349.93, 18,876,413.34 and 8,520,257.98 is: 11,761,576.40
Step by Step Solution
- Step 1: Write the proportion equation
13,674,349.93 : 18,876,413.34 = 8,520,257.98 : x - Step 2: Convert to fraction form
13,674,349.93/18,876,413.34 = 8,520,257.98/x - Step 3: Cross multiply
13,674,349.93x = 18,876,413.34 × 8,520,257.98 - Step 4: Simplify right side
13,674,349.93x = 160,831,911,393,913.47 - Step 5: Solve for x
x = 160,831,911,393,913.47/13,674,349.93 - Step 6: Final answer
x = 11,761,576.40
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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.