Finding the Fourth Proportional to 212,944,614.80, 319,558,639.80 and 120,828,174.80
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Solution
The fourth proportional to 212,944,614.80, 319,558,639.80 and 120,828,174.80 is: 181,322,675.03
Step by Step Solution
- Step 1: Write the proportion equation
212,944,614.80 : 319,558,639.80 = 120,828,174.80 : x - Step 2: Convert to fraction form
212,944,614.80/319,558,639.80 = 120,828,174.80/x - Step 3: Cross multiply
212,944,614.80x = 319,558,639.80 × 120,828,174.80 - Step 4: Simplify right side
212,944,614.80x = 38,611,687,188,604,640 - Step 5: Solve for x
x = 38,611,687,188,604,640/212,944,614.80 - Step 6: Final answer
x = 181,322,675.03
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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.