Finding the Fourth Proportional to 479,207,828.84, 718,891,206.68 and 168,234,731.60
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Solution
The fourth proportional to 479,207,828.84, 718,891,206.68 and 168,234,731.60 is: 252,379,994.50
Step by Step Solution
- Step 1: Write the proportion equation
479,207,828.84 : 718,891,206.68 = 168,234,731.60 : x - Step 2: Convert to fraction form
479,207,828.84/718,891,206.68 = 168,234,731.60/x - Step 3: Cross multiply
479,207,828.84x = 718,891,206.68 × 168,234,731.60 - Step 4: Simplify right side
479,207,828.84x = 120,942,469,205,409,920 - Step 5: Solve for x
x = 120,942,469,205,409,920/479,207,828.84 - Step 6: Final answer
x = 252,379,994.50
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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.