Finding the Fourth Proportional to 7,043,961.17, 10,561,623.77 and 2,998,145.09
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Solution
The fourth proportional to 7,043,961.17, 10,561,623.77 and 2,998,145.09 is: 4,495,379.75
Step by Step Solution
- Step 1: Write the proportion equation
7,043,961.17 : 10,561,623.77 = 2,998,145.09 : x - Step 2: Convert to fraction form
7,043,961.17/10,561,623.77 = 2,998,145.09/x - Step 3: Cross multiply
7,043,961.17x = 10,561,623.77 × 2,998,145.09 - Step 4: Simplify right side
7,043,961.17x = 31,665,280,380,653.95 - Step 5: Solve for x
x = 31,665,280,380,653.95/7,043,961.17 - Step 6: Final answer
x = 4,495,379.75
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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.