Finding the Fourth Proportional to 129,276,640.20, 193,914,960.30 and 100,366,249.80
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Solution
The fourth proportional to 129,276,640.20, 193,914,960.30 and 100,366,249.80 is: 150,549,374.70
Step by Step Solution
- Step 1: Write the proportion equation
129,276,640.20 : 193,914,960.30 = 100,366,249.80 : x - Step 2: Convert to fraction form
129,276,640.20/193,914,960.30 = 100,366,249.80/x - Step 3: Cross multiply
129,276,640.20x = 193,914,960.30 × 100,366,249.80 - Step 4: Simplify right side
129,276,640.20x = 19,462,517,345,426,884 - Step 5: Solve for x
x = 19,462,517,345,426,884/129,276,640.20 - Step 6: Final answer
x = 150,549,374.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.