Finding the Fourth Proportional to 75,198,414.39, 112,806,058.55 and 67,474,576.77
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Solution
The fourth proportional to 75,198,414.39, 112,806,058.55 and 67,474,576.77 is: 101,219,435.53
Step by Step Solution
- Step 1: Write the proportion equation
75,198,414.39 : 112,806,058.55 = 67,474,576.77 : x - Step 2: Convert to fraction form
75,198,414.39/112,806,058.55 = 67,474,576.77/x - Step 3: Cross multiply
75,198,414.39x = 112,806,058.55 × 67,474,576.77 - Step 4: Simplify right side
75,198,414.39x = 7,611,541,057,415,717 - Step 5: Solve for x
x = 7,611,541,057,415,717/75,198,414.39 - Step 6: Final answer
x = 101,219,435.53
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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.