Finding the Fourth Proportional to 212,206,465.56, 318,291,464.88 and 129,186,672.24
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Solution
The fourth proportional to 212,206,465.56, 318,291,464.88 and 129,186,672.24 is: 193,768,908.23
Step by Step Solution
- Step 1: Write the proportion equation
212,206,465.56 : 318,291,464.88 = 129,186,672.24 : x - Step 2: Convert to fraction form
212,206,465.56/318,291,464.88 = 129,186,672.24/x - Step 3: Cross multiply
212,206,465.56x = 318,291,464.88 × 129,186,672.24 - Step 4: Simplify right side
212,206,465.56x = 41,119,015,150,242,032 - Step 5: Solve for x
x = 41,119,015,150,242,032/212,206,465.56 - Step 6: Final answer
x = 193,768,908.23
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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.