Finding the Fourth Proportional to 366,307,369.20, 505,393,936.92 and 219,576,115.44
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Solution
The fourth proportional to 366,307,369.20, 505,393,936.92 and 219,576,115.44 is: 302,948,962.45
Step by Step Solution
- Step 1: Write the proportion equation
366,307,369.20 : 505,393,936.92 = 219,576,115.44 : x - Step 2: Convert to fraction form
366,307,369.20/505,393,936.92 = 219,576,115.44/x - Step 3: Cross multiply
366,307,369.20x = 505,393,936.92 × 219,576,115.44 - Step 4: Simplify right side
366,307,369.20x = 110,972,437,435,822,000 - Step 5: Solve for x
x = 110,972,437,435,822,000/366,307,369.20 - Step 6: Final answer
x = 302,948,962.45
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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.