Finding the Fourth Proportional to 55,580,578.68, 76,701,379.26 and 30,801,174.30
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Solution
The fourth proportional to 55,580,578.68, 76,701,379.26 and 30,801,174.30 is: 42,505,720.66
Step by Step Solution
- Step 1: Write the proportion equation
55,580,578.68 : 76,701,379.26 = 30,801,174.30 : x - Step 2: Convert to fraction form
55,580,578.68/76,701,379.26 = 30,801,174.30/x - Step 3: Cross multiply
55,580,578.68x = 76,701,379.26 × 30,801,174.30 - Step 4: Simplify right side
55,580,578.68x = 2,362,492,551,637,665 - Step 5: Solve for x
x = 2,362,492,551,637,665/55,580,578.68 - Step 6: Final answer
x = 42,505,720.66
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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.