Finding the Fourth Proportional to 37,012,239.25, 50,985,626.38 and 31,487,920.99
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Solution
The fourth proportional to 37,012,239.25, 50,985,626.38 and 31,487,920.99 is: 43,375,688.90
Step by Step Solution
- Step 1: Write the proportion equation
37,012,239.25 : 50,985,626.38 = 31,487,920.99 : x - Step 2: Convert to fraction form
37,012,239.25/50,985,626.38 = 31,487,920.99/x - Step 3: Cross multiply
37,012,239.25x = 50,985,626.38 × 31,487,920.99 - Step 4: Simplify right side
37,012,239.25x = 1,605,431,375,079,099.75 - Step 5: Solve for x
x = 1,605,431,375,079,099.75/37,012,239.25 - Step 6: Final answer
x = 43,375,688.90
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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.