Finding the Fourth Proportional to 18,985,361.58, 28,479,370.97 and 9,398,165.94
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Solution
The fourth proportional to 18,985,361.58, 28,479,370.97 and 9,398,165.94 is: 14,097,906.60
Step by Step Solution
- Step 1: Write the proportion equation
18,985,361.58 : 28,479,370.97 = 9,398,165.94 : x - Step 2: Convert to fraction form
18,985,361.58/28,479,370.97 = 9,398,165.94/x - Step 3: Cross multiply
18,985,361.58x = 28,479,370.97 × 9,398,165.94 - Step 4: Simplify right side
18,985,361.58x = 267,653,854,266,374.16 - Step 5: Solve for x
x = 267,653,854,266,374.16/18,985,361.58 - Step 6: Final answer
x = 14,097,906.60
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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.