Finding the Fourth Proportional to 10,965,733.20, 16,448,599.80 and 8,131,381.20
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Solution
The fourth proportional to 10,965,733.20, 16,448,599.80 and 8,131,381.20 is: 12,197,071.80
Step by Step Solution
- Step 1: Write the proportion equation
10,965,733.20 : 16,448,599.80 = 8,131,381.20 : x - Step 2: Convert to fraction form
10,965,733.20/16,448,599.80 = 8,131,381.20/x - Step 3: Cross multiply
10,965,733.20x = 16,448,599.80 × 8,131,381.20 - Step 4: Simplify right side
10,965,733.20x = 133,749,835,180,043.77 - Step 5: Solve for x
x = 133,749,835,180,043.77/10,965,733.20 - Step 6: Final answer
x = 12,197,071.80
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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.