Finding the Fourth Proportional to 39,720,889.94, 54,839,283.26 and 31,494,183.26
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Solution
The fourth proportional to 39,720,889.94, 54,839,283.26 and 31,494,183.26 is: 43,481,363.06
Step by Step Solution
- Step 1: Write the proportion equation
39,720,889.94 : 54,839,283.26 = 31,494,183.26 : x - Step 2: Convert to fraction form
39,720,889.94/54,839,283.26 = 31,494,183.26/x - Step 3: Cross multiply
39,720,889.94x = 54,839,283.26 × 31,494,183.26 - Step 4: Simplify right side
39,720,889.94x = 1,727,118,436,405,823 - Step 5: Solve for x
x = 1,727,118,436,405,823/39,720,889.94 - Step 6: Final answer
x = 43,481,363.06
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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.