Finding the Fourth Proportional to 8,752,638.24, 12,069,118.80 and 5,691,175.20
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Solution
The fourth proportional to 8,752,638.24, 12,069,118.80 and 5,691,175.20 is: 7,847,630.36
Step by Step Solution
- Step 1: Write the proportion equation
8,752,638.24 : 12,069,118.80 = 5,691,175.20 : x - Step 2: Convert to fraction form
8,752,638.24/12,069,118.80 = 5,691,175.20/x - Step 3: Cross multiply
8,752,638.24x = 12,069,118.80 × 5,691,175.20 - Step 4: Simplify right side
8,752,638.24x = 68,687,469,600,413.77 - Step 5: Solve for x
x = 68,687,469,600,413.77/8,752,638.24 - Step 6: Final answer
x = 7,847,630.36
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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.