Finding the Fourth Proportional to 6,876,885.60, 9,489,929.76 and 3,821,107.68
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Solution
The fourth proportional to 6,876,885.60, 9,489,929.76 and 3,821,107.68 is: 5,273,032.82
Step by Step Solution
- Step 1: Write the proportion equation
6,876,885.60 : 9,489,929.76 = 3,821,107.68 : x - Step 2: Convert to fraction form
6,876,885.60/9,489,929.76 = 3,821,107.68/x - Step 3: Cross multiply
6,876,885.60x = 9,489,929.76 × 3,821,107.68 - Step 4: Simplify right side
6,876,885.60x = 36,262,043,488,596.55 - Step 5: Solve for x
x = 36,262,043,488,596.55/6,876,885.60 - Step 6: Final answer
x = 5,273,032.82
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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.