Finding the Fourth Proportional to 5,695,745.49, 7,860,128.79 and 3,117,426.27
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Solution
The fourth proportional to 5,695,745.49, 7,860,128.79 and 3,117,426.27 is: 4,302,048.26
Step by Step Solution
- Step 1: Write the proportion equation
5,695,745.49 : 7,860,128.79 = 3,117,426.27 : x - Step 2: Convert to fraction form
5,695,745.49/7,860,128.79 = 3,117,426.27/x - Step 3: Cross multiply
5,695,745.49x = 7,860,128.79 × 3,117,426.27 - Step 4: Simplify right side
5,695,745.49x = 24,503,371,975,529.31 - Step 5: Solve for x
x = 24,503,371,975,529.31/5,695,745.49 - Step 6: Final answer
x = 4,302,048.26
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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.