Finding the Fourth Proportional to 21,323,171.64, 31,984,732.80 and 6,946,216.44
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Solution
The fourth proportional to 21,323,171.64, 31,984,732.80 and 6,946,216.44 is: 10,419,316.63
Step by Step Solution
- Step 1: Write the proportion equation
21,323,171.64 : 31,984,732.80 = 6,946,216.44 : x - Step 2: Convert to fraction form
21,323,171.64/31,984,732.80 = 6,946,216.44/x - Step 3: Cross multiply
21,323,171.64x = 31,984,732.80 × 6,946,216.44 - Step 4: Simplify right side
21,323,171.64x = 222,172,876,804,367.25 - Step 5: Solve for x
x = 222,172,876,804,367.25/21,323,171.64 - Step 6: Final answer
x = 10,419,316.63
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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.