Finding the Fourth Proportional to 354,824,021.20, 532,313,446.20 and 201,543,509.20
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Solution
The fourth proportional to 354,824,021.20, 532,313,446.20 and 201,543,509.20 is: 302,359,235.94
Step by Step Solution
- Step 1: Write the proportion equation
354,824,021.20 : 532,313,446.20 = 201,543,509.20 : x - Step 2: Convert to fraction form
354,824,021.20/532,313,446.20 = 201,543,509.20/x - Step 3: Cross multiply
354,824,021.20x = 532,313,446.20 × 201,543,509.20 - Step 4: Simplify right side
354,824,021.20x = 107,284,319,941,493,392 - Step 5: Solve for x
x = 107,284,319,941,493,392/354,824,021.20 - Step 6: Final answer
x = 302,359,235.94
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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.