Finding the Fourth Proportional to 7,912,790.48, 11,867,524.95 and 2,231,686.19
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Solution
The fourth proportional to 7,912,790.48, 11,867,524.95 and 2,231,686.19 is: 3,347,060.89
Step by Step Solution
- Step 1: Write the proportion equation
7,912,790.48 : 11,867,524.95 = 2,231,686.19 : x - Step 2: Convert to fraction form
7,912,790.48/11,867,524.95 = 2,231,686.19/x - Step 3: Cross multiply
7,912,790.48x = 11,867,524.95 × 2,231,686.19 - Step 4: Simplify right side
7,912,790.48x = 26,484,591,540,395.44 - Step 5: Solve for x
x = 26,484,591,540,395.44/7,912,790.48 - Step 6: Final answer
x = 3,347,060.89
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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.