Finding the Fourth Proportional to 5,168,177.62, 7,131,963.81 and 2,876,289.10
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Solution
The fourth proportional to 5,168,177.62, 7,131,963.81 and 2,876,289.10 is: 3,969,211.45
Step by Step Solution
- Step 1: Write the proportion equation
5,168,177.62 : 7,131,963.81 = 2,876,289.10 : x - Step 2: Convert to fraction form
5,168,177.62/7,131,963.81 = 2,876,289.10/x - Step 3: Cross multiply
5,168,177.62x = 7,131,963.81 × 2,876,289.10 - Step 4: Simplify right side
5,168,177.62x = 20,513,589,768,297.47 - Step 5: Solve for x
x = 20,513,589,768,297.47/5,168,177.62 - Step 6: Final answer
x = 3,969,211.45
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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.