Finding the Fourth Proportional to 212,893,972.26, 319,338,830.31 and 67,327,558.44
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Solution
The fourth proportional to 212,893,972.26, 319,338,830.31 and 67,327,558.44 is: 100,990,664.65
Step by Step Solution
- Step 1: Write the proportion equation
212,893,972.26 : 319,338,830.31 = 67,327,558.44 : x - Step 2: Convert to fraction form
212,893,972.26/319,338,830.31 = 67,327,558.44/x - Step 3: Cross multiply
212,893,972.26x = 319,338,830.31 × 67,327,558.44 - Step 4: Simplify right side
212,893,972.26x = 21,500,303,758,261,076 - Step 5: Solve for x
x = 21,500,303,758,261,076/212,893,972.26 - Step 6: Final answer
x = 100,990,664.65
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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.