Finding the Fourth Proportional to 13,490,322.68, 20,235,518.58 and 5,512,146.68
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Solution
The fourth proportional to 13,490,322.68, 20,235,518.58 and 5,512,146.68 is: 8,268,234.14
Step by Step Solution
- Step 1: Write the proportion equation
13,490,322.68 : 20,235,518.58 = 5,512,146.68 : x - Step 2: Convert to fraction form
13,490,322.68/20,235,518.58 = 5,512,146.68/x - Step 3: Cross multiply
13,490,322.68x = 20,235,518.58 × 5,512,146.68 - Step 4: Simplify right side
13,490,322.68x = 111,541,146,558,825.30 - Step 5: Solve for x
x = 111,541,146,558,825.30/13,490,322.68 - Step 6: Final answer
x = 8,268,234.14
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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.