Finding the Fourth Proportional to 355,936,809.18, 491,363,122.69 and 237,057,235.70
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Solution
The fourth proportional to 355,936,809.18, 491,363,122.69 and 237,057,235.70 is: 327,252,423.99
Step by Step Solution
- Step 1: Write the proportion equation
355,936,809.18 : 491,363,122.69 = 237,057,235.70 : x - Step 2: Convert to fraction form
355,936,809.18/491,363,122.69 = 237,057,235.70/x - Step 3: Cross multiply
355,936,809.18x = 491,363,122.69 × 237,057,235.70 - Step 4: Simplify right side
355,936,809.18x = 116,481,183,589,811,344 - Step 5: Solve for x
x = 116,481,183,589,811,344/355,936,809.18 - Step 6: Final answer
x = 327,252,423.99
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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.