Finding the Fourth Proportional to 14,733,890.16, 20,330,069.36 and 8,207,357.28
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Solution
The fourth proportional to 14,733,890.16, 20,330,069.36 and 8,207,357.28 is: 11,324,649.56
Step by Step Solution
- Step 1: Write the proportion equation
14,733,890.16 : 20,330,069.36 = 8,207,357.28 : x - Step 2: Convert to fraction form
14,733,890.16/20,330,069.36 = 8,207,357.28/x - Step 3: Cross multiply
14,733,890.16x = 20,330,069.36 × 8,207,357.28 - Step 4: Simplify right side
14,733,890.16x = 166,856,142,723,664.16 - Step 5: Solve for x
x = 166,856,142,723,664.16/14,733,890.16 - Step 6: Final answer
x = 11,324,649.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.