Finding the Fourth Proportional to 18,558,906.60, 25,611,235.74 and 10,300,212.84
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Solution
The fourth proportional to 18,558,906.60, 25,611,235.74 and 10,300,212.84 is: 14,214,262.99
Step by Step Solution
- Step 1: Write the proportion equation
18,558,906.60 : 25,611,235.74 = 10,300,212.84 : x - Step 2: Convert to fraction form
18,558,906.60/25,611,235.74 = 10,300,212.84/x - Step 3: Cross multiply
18,558,906.60x = 25,611,235.74 × 10,300,212.84 - Step 4: Simplify right side
18,558,906.60x = 263,801,179,217,414.88 - Step 5: Solve for x
x = 263,801,179,217,414.88/18,558,906.60 - Step 6: Final answer
x = 14,214,262.99
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1.5x scale
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.