Finding the Fourth Proportional to 5,635,907.99, 7,778,286.68 and 3,156,073.14
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Solution
The fourth proportional to 5,635,907.99, 7,778,286.68 and 3,156,073.14 is: 4,355,791.77
Step by Step Solution
- Step 1: Write the proportion equation
5,635,907.99 : 7,778,286.68 = 3,156,073.14 : x - Step 2: Convert to fraction form
5,635,907.99/7,778,286.68 = 3,156,073.14/x - Step 3: Cross multiply
5,635,907.99x = 7,778,286.68 × 3,156,073.14 - Step 4: Simplify right side
5,635,907.99x = 24,548,841,665,967.77 - Step 5: Solve for x
x = 24,548,841,665,967.77/5,635,907.99 - Step 6: Final answer
x = 4,355,791.77
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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.