Finding the Fourth Proportional to 6,383,169.20, 9,581,752.20 and 3,989,716.40
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Solution
The fourth proportional to 6,383,169.20, 9,581,752.20 and 3,989,716.40 is: 5,988,948.86
Step by Step Solution
- Step 1: Write the proportion equation
6,383,169.20 : 9,581,752.20 = 3,989,716.40 : x - Step 2: Convert to fraction form
6,383,169.20/9,581,752.20 = 3,989,716.40/x - Step 3: Cross multiply
6,383,169.20x = 9,581,752.20 × 3,989,716.40 - Step 4: Simplify right side
6,383,169.20x = 38,228,473,893,076.08 - Step 5: Solve for x
x = 38,228,473,893,076.08/6,383,169.20 - Step 6: Final answer
x = 5,988,948.86
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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.