Finding the Fourth Proportional to 6,457,135.20, 8,910,906.84 and 3,556,536.72
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Solution
The fourth proportional to 6,457,135.20, 8,910,906.84 and 3,556,536.72 is: 4,908,053.87
Step by Step Solution
- Step 1: Write the proportion equation
6,457,135.20 : 8,910,906.84 = 3,556,536.72 : x - Step 2: Convert to fraction form
6,457,135.20/8,910,906.84 = 3,556,536.72/x - Step 3: Cross multiply
6,457,135.20x = 8,910,906.84 × 3,556,536.72 - Step 4: Simplify right side
6,457,135.20x = 31,691,967,384,959.17 - Step 5: Solve for x
x = 31,691,967,384,959.17/6,457,135.20 - Step 6: Final answer
x = 4,908,053.87
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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.