Finding the Fourth Proportional to 3,023,442.18, 4,172,349.42 and 1,665,315.18
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Solution
The fourth proportional to 3,023,442.18, 4,172,349.42 and 1,665,315.18 is: 2,298,134.51
Step by Step Solution
- Step 1: Write the proportion equation
3,023,442.18 : 4,172,349.42 = 1,665,315.18 : x - Step 2: Convert to fraction form
3,023,442.18/4,172,349.42 = 1,665,315.18/x - Step 3: Cross multiply
3,023,442.18x = 4,172,349.42 × 1,665,315.18 - Step 4: Simplify right side
3,023,442.18x = 6,948,276,825,390.20 - Step 5: Solve for x
x = 6,948,276,825,390.20/3,023,442.18 - Step 6: Final answer
x = 2,298,134.51
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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.