Finding the Fourth Proportional to 18,361,717.80, 27,542,576.70 and 8,284,021.80
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Solution
The fourth proportional to 18,361,717.80, 27,542,576.70 and 8,284,021.80 is: 12,426,032.70
Step by Step Solution
- Step 1: Write the proportion equation
18,361,717.80 : 27,542,576.70 = 8,284,021.80 : x - Step 2: Convert to fraction form
18,361,717.80/27,542,576.70 = 8,284,021.80/x - Step 3: Cross multiply
18,361,717.80x = 27,542,576.70 × 8,284,021.80 - Step 4: Simplify right side
18,361,717.80x = 228,163,305,810,972.06 - Step 5: Solve for x
x = 228,163,305,810,972.06/18,361,717.80 - Step 6: Final answer
x = 12,426,032.70
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1.5x scale
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.