Finding the Fourth Proportional to 5,137,349.51, 7,089,542.19 and 2,845,657.82
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Solution
The fourth proportional to 5,137,349.51, 7,089,542.19 and 2,845,657.82 is: 3,927,007.71
Step by Step Solution
- Step 1: Write the proportion equation
5,137,349.51 : 7,089,542.19 = 2,845,657.82 : x - Step 2: Convert to fraction form
5,137,349.51/7,089,542.19 = 2,845,657.82/x - Step 3: Cross multiply
5,137,349.51x = 7,089,542.19 × 2,845,657.82 - Step 4: Simplify right side
5,137,349.51x = 20,174,411,137,745.71 - Step 5: Solve for x
x = 20,174,411,137,745.71/5,137,349.51 - Step 6: Final answer
x = 3,927,007.71
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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.