Finding the Fourth Proportional to 3,977,214.88, 5,488,402.04 and 2,431,065.36
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Solution
The fourth proportional to 3,977,214.88, 5,488,402.04 and 2,431,065.36 is: 3,354,775.76
Step by Step Solution
- Step 1: Write the proportion equation
3,977,214.88 : 5,488,402.04 = 2,431,065.36 : x - Step 2: Convert to fraction form
3,977,214.88/5,488,402.04 = 2,431,065.36/x - Step 3: Cross multiply
3,977,214.88x = 5,488,402.04 × 2,431,065.36 - Step 4: Simplify right side
3,977,214.88x = 13,342,664,081,197.33 - Step 5: Solve for x
x = 13,342,664,081,197.33/3,977,214.88 - Step 6: Final answer
x = 3,354,775.76
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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.