Finding the Fourth Proportional to 4,268,323.20, 6,390,043.20 and 4,143,907.20
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Solution
The fourth proportional to 4,268,323.20, 6,390,043.20 and 4,143,907.20 is: 6,203,781.86
Step by Step Solution
- Step 1: Write the proportion equation
4,268,323.20 : 6,390,043.20 = 4,143,907.20 : x - Step 2: Convert to fraction form
4,268,323.20/6,390,043.20 = 4,143,907.20/x - Step 3: Cross multiply
4,268,323.20x = 6,390,043.20 × 4,143,907.20 - Step 4: Simplify right side
4,268,323.20x = 26,479,746,024,791.04 - Step 5: Solve for x
x = 26,479,746,024,791.04/4,268,323.20 - Step 6: Final answer
x = 6,203,781.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.