Finding the Fourth Proportional to 91,397,651.57, 126,128,759.17 and 52,240,269.08
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Solution
The fourth proportional to 91,397,651.57, 126,128,759.17 and 52,240,269.08 is: 72,091,571.32
Step by Step Solution
- Step 1: Write the proportion equation
91,397,651.57 : 126,128,759.17 = 52,240,269.08 : x - Step 2: Convert to fraction form
91,397,651.57/126,128,759.17 = 52,240,269.08/x - Step 3: Cross multiply
91,397,651.57x = 126,128,759.17 × 52,240,269.08 - Step 4: Simplify right side
91,397,651.57x = 6,589,000,316,875,473 - Step 5: Solve for x
x = 6,589,000,316,875,473/91,397,651.57 - Step 6: Final answer
x = 72,091,571.32
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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.