Finding the Fourth Proportional to 13,921,729.92, 19,211,005.44 and 7,727,091.84
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Solution
The fourth proportional to 13,921,729.92, 19,211,005.44 and 7,727,091.84 is: 10,662,841.78
Step by Step Solution
- Step 1: Write the proportion equation
13,921,729.92 : 19,211,005.44 = 7,727,091.84 : x - Step 2: Convert to fraction form
13,921,729.92/19,211,005.44 = 7,727,091.84/x - Step 3: Cross multiply
13,921,729.92x = 19,211,005.44 × 7,727,091.84 - Step 4: Simplify right side
13,921,729.92x = 148,445,203,373,619.62 - Step 5: Solve for x
x = 148,445,203,373,619.62/13,921,729.92 - Step 6: Final answer
x = 10,662,841.78
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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.