Finding the Fourth Proportional to 354,767,415.20, 532,151,122.80 and 193,524,279.20
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Solution
The fourth proportional to 354,767,415.20, 532,151,122.80 and 193,524,279.20 is: 290,286,418.80
Step by Step Solution
- Step 1: Write the proportion equation
354,767,415.20 : 532,151,122.80 = 193,524,279.20 : x - Step 2: Convert to fraction form
354,767,415.20/532,151,122.80 = 193,524,279.20/x - Step 3: Cross multiply
354,767,415.20x = 532,151,122.80 × 193,524,279.20 - Step 4: Simplify right side
354,767,415.20x = 102,984,162,465,340,688 - Step 5: Solve for x
x = 102,984,162,465,340,688/354,767,415.20 - Step 6: Final answer
x = 290,286,418.80
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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.