Finding the Fourth Proportional to 3,977,193.70, 5,488,372.82 and 2,431,044.17
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Solution
The fourth proportional to 3,977,193.70, 5,488,372.82 and 2,431,044.17 is: 3,354,746.53
Step by Step Solution
- Step 1: Write the proportion equation
3,977,193.70 : 5,488,372.82 = 2,431,044.17 : x - Step 2: Convert to fraction form
3,977,193.70/5,488,372.82 = 2,431,044.17/x - Step 3: Cross multiply
3,977,193.70x = 5,488,372.82 × 2,431,044.17 - Step 4: Simplify right side
3,977,193.70x = 13,342,476,746,847.46 - Step 5: Solve for x
x = 13,342,476,746,847.46/3,977,193.70 - Step 6: Final answer
x = 3,354,746.53
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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.