Finding the Fourth Proportional to 8,418,216.42, 12,627,775.40 and 2,660,512.05
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Solution
The fourth proportional to 8,418,216.42, 12,627,775.40 and 2,660,512.05 is: 3,990,910.54
Step by Step Solution
- Step 1: Write the proportion equation
8,418,216.42 : 12,627,775.40 = 2,660,512.05 : x - Step 2: Convert to fraction form
8,418,216.42/12,627,775.40 = 2,660,512.05/x - Step 3: Cross multiply
8,418,216.42x = 12,627,775.40 × 2,660,512.05 - Step 4: Simplify right side
8,418,216.42x = 33,596,348,603,091.01 - Step 5: Solve for x
x = 33,596,348,603,091.01/8,418,216.42 - Step 6: Final answer
x = 3,990,910.54
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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.