Finding the Fourth Proportional to 313,616,122.20, 470,424,183.30 and 191,172,115.80
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Solution
The fourth proportional to 313,616,122.20, 470,424,183.30 and 191,172,115.80 is: 286,758,173.70
Step by Step Solution
- Step 1: Write the proportion equation
313,616,122.20 : 470,424,183.30 = 191,172,115.80 : x - Step 2: Convert to fraction form
313,616,122.20/470,424,183.30 = 191,172,115.80/x - Step 3: Cross multiply
313,616,122.20x = 470,424,183.30 × 191,172,115.80 - Step 4: Simplify right side
313,616,122.20x = 89,931,986,444,948,032 - Step 5: Solve for x
x = 89,931,986,444,948,032/313,616,122.20 - Step 6: Final answer
x = 286,758,173.70
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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.