Finding the Fourth Proportional to 5,168,883.68, 7,133,059.80 and 2,876,995.16
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Solution
The fourth proportional to 5,168,883.68, 7,133,059.80 and 2,876,995.16 is: 3,970,253.50
Step by Step Solution
- Step 1: Write the proportion equation
5,168,883.68 : 7,133,059.80 = 2,876,995.16 : x - Step 2: Convert to fraction form
5,168,883.68/7,133,059.80 = 2,876,995.16/x - Step 3: Cross multiply
5,168,883.68x = 7,133,059.80 × 2,876,995.16 - Step 4: Simplify right side
5,168,883.68x = 20,521,778,520,590.57 - Step 5: Solve for x
x = 20,521,778,520,590.57/5,168,883.68 - Step 6: Final answer
x = 3,970,253.50
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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.