Finding the Fourth Proportional to 6,442,851.84, 8,891,153.28 and 3,542,539.20
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Solution
The fourth proportional to 6,442,851.84, 8,891,153.28 and 3,542,539.20 is: 4,888,713.85
Step by Step Solution
- Step 1: Write the proportion equation
6,442,851.84 : 8,891,153.28 = 3,542,539.20 : x - Step 2: Convert to fraction form
6,442,851.84/8,891,153.28 = 3,542,539.20/x - Step 3: Cross multiply
6,442,851.84x = 8,891,153.28 × 3,542,539.20 - Step 4: Simplify right side
6,442,851.84x = 31,497,259,027,608.57 - Step 5: Solve for x
x = 31,497,259,027,608.57/6,442,851.84 - Step 6: Final answer
x = 4,888,713.85
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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.