Finding the Fourth Proportional to 3,977,210.64, 5,488,396.18 and 2,431,061.10
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Solution
The fourth proportional to 3,977,210.64, 5,488,396.18 and 2,431,061.10 is: 3,354,769.88
Step by Step Solution
- Step 1: Write the proportion equation
3,977,210.64 : 5,488,396.18 = 2,431,061.10 : x - Step 2: Convert to fraction form
3,977,210.64/5,488,396.18 = 2,431,061.10/x - Step 3: Cross multiply
3,977,210.64x = 5,488,396.18 × 2,431,061.10 - Step 4: Simplify right side
3,977,210.64x = 13,342,626,454,586.60 - Step 5: Solve for x
x = 13,342,626,454,586.60/3,977,210.64 - Step 6: Final answer
x = 3,354,769.88
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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.