Finding the Fourth Proportional to 5,328,456.68, 7,990,789.62 and 1,541,155.88
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Solution
The fourth proportional to 5,328,456.68, 7,990,789.62 and 1,541,155.88 is: 2,311,185.61
Step by Step Solution
- Step 1: Write the proportion equation
5,328,456.68 : 7,990,789.62 = 1,541,155.88 : x - Step 2: Convert to fraction form
5,328,456.68/7,990,789.62 = 1,541,155.88/x - Step 3: Cross multiply
5,328,456.68x = 7,990,789.62 × 1,541,155.88 - Step 4: Simplify right side
5,328,456.68x = 12,315,052,408,705.96 - Step 5: Solve for x
x = 12,315,052,408,705.96/5,328,456.68 - Step 6: Final answer
x = 2,311,185.61
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.