Finding the Fourth Proportional to 135,777,211.08, 203,797,348.32 and 128,403,467.22
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Solution
The fourth proportional to 135,777,211.08, 203,797,348.32 and 128,403,467.22 is: 192,729,589.35
Step by Step Solution
- Step 1: Write the proportion equation
135,777,211.08 : 203,797,348.32 = 128,403,467.22 : x - Step 2: Convert to fraction form
135,777,211.08/203,797,348.32 = 128,403,467.22/x - Step 3: Cross multiply
135,777,211.08x = 203,797,348.32 × 128,403,467.22 - Step 4: Simplify right side
135,777,211.08x = 26,168,286,134,530,040 - Step 5: Solve for x
x = 26,168,286,134,530,040/135,777,211.08 - Step 6: Final answer
x = 192,729,589.35
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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.