Finding the Fourth Proportional to 39,033,203.51, 53,865,675.74 and 21,629,534.93
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Solution
The fourth proportional to 39,033,203.51, 53,865,675.74 and 21,629,534.93 is: 29,848,677.81
Step by Step Solution
- Step 1: Write the proportion equation
39,033,203.51 : 53,865,675.74 = 21,629,534.93 : x - Step 2: Convert to fraction form
39,033,203.51/53,865,675.74 = 21,629,534.93/x - Step 3: Cross multiply
39,033,203.51x = 53,865,675.74 × 21,629,534.93 - Step 4: Simplify right side
39,033,203.51x = 1,165,089,515,135,121.75 - Step 5: Solve for x
x = 1,165,089,515,135,121.75/39,033,203.51 - Step 6: Final answer
x = 29,848,677.81
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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.