Finding the Fourth Proportional to 62,670,976.98, 86,486,261.25 and 39,163,163.96
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Solution
The fourth proportional to 62,670,976.98, 86,486,261.25 and 39,163,163.96 is: 54,045,361.88
Step by Step Solution
- Step 1: Write the proportion equation
62,670,976.98 : 86,486,261.25 = 39,163,163.96 : x - Step 2: Convert to fraction form
62,670,976.98/86,486,261.25 = 39,163,163.96/x - Step 3: Cross multiply
62,670,976.98x = 86,486,261.25 × 39,163,163.96 - Step 4: Simplify right side
62,670,976.98x = 3,387,075,629,984,222 - Step 5: Solve for x
x = 3,387,075,629,984,222/62,670,976.98 - Step 6: Final answer
x = 54,045,361.88
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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.