Finding the Fourth Proportional to 7,910,394.88, 11,865,611.76 and 2,230,648.96
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Solution
The fourth proportional to 7,910,394.88, 11,865,611.76 and 2,230,648.96 is: 3,345,978.92
Step by Step Solution
- Step 1: Write the proportion equation
7,910,394.88 : 11,865,611.76 = 2,230,648.96 : x - Step 2: Convert to fraction form
7,910,394.88/11,865,611.76 = 2,230,648.96/x - Step 3: Cross multiply
7,910,394.88x = 11,865,611.76 × 2,230,648.96 - Step 4: Simplify right side
7,910,394.88x = 26,468,014,532,207.77 - Step 5: Solve for x
x = 26,468,014,532,207.77/7,910,394.88 - Step 6: Final answer
x = 3,345,978.92
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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.