Finding the Fourth Proportional to 31,428,747.36, 43,371,357.12 and 17,489,863.98
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Solution
The fourth proportional to 31,428,747.36, 43,371,357.12 and 17,489,863.98 is: 24,135,837.42
Step by Step Solution
- Step 1: Write the proportion equation
31,428,747.36 : 43,371,357.12 = 17,489,863.98 : x - Step 2: Convert to fraction form
31,428,747.36/43,371,357.12 = 17,489,863.98/x - Step 3: Cross multiply
31,428,747.36x = 43,371,357.12 × 17,489,863.98 - Step 4: Simplify right side
31,428,747.36x = 758,559,136,656,804.50 - Step 5: Solve for x
x = 758,559,136,656,804.50/31,428,747.36 - Step 6: Final answer
x = 24,135,837.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.