Finding the Fourth Proportional to 212,968,296.50, 319,487,742.93 and 74,758,042.94
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Solution
The fourth proportional to 212,968,296.50, 319,487,742.93 and 74,758,042.94 is: 112,149,455.09
Step by Step Solution
- Step 1: Write the proportion equation
212,968,296.50 : 319,487,742.93 = 74,758,042.94 : x - Step 2: Convert to fraction form
212,968,296.50/319,487,742.93 = 74,758,042.94/x - Step 3: Cross multiply
212,968,296.50x = 319,487,742.93 × 74,758,042.94 - Step 4: Simplify right side
212,968,296.50x = 23,884,278,404,764,620 - Step 5: Solve for x
x = 23,884,278,404,764,620/212,968,296.50 - Step 6: Final answer
x = 112,149,455.09
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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.