Finding the Fourth Proportional to 398,701,105.12, 550,207,624.62 and 220,085,093.44
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Solution
The fourth proportional to 398,701,105.12, 550,207,624.62 and 220,085,093.44 is: 303,717,483.90
Step by Step Solution
- Step 1: Write the proportion equation
398,701,105.12 : 550,207,624.62 = 220,085,093.44 : x - Step 2: Convert to fraction form
398,701,105.12/550,207,624.62 = 220,085,093.44/x - Step 3: Cross multiply
398,701,105.12x = 550,207,624.62 × 220,085,093.44 - Step 4: Simplify right side
398,701,105.12x = 121,092,496,475,893,152 - Step 5: Solve for x
x = 121,092,496,475,893,152/398,701,105.12 - Step 6: Final answer
x = 303,717,483.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.