Finding the Fourth Proportional to 388,186,723.08, 582,085,373.58 and 129,310,930.44
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Solution
The fourth proportional to 388,186,723.08, 582,085,373.58 and 129,310,930.44 is: 193,901,534.44
Step by Step Solution
- Step 1: Write the proportion equation
388,186,723.08 : 582,085,373.58 = 129,310,930.44 : x - Step 2: Convert to fraction form
388,186,723.08/582,085,373.58 = 129,310,930.44/x - Step 3: Cross multiply
388,186,723.08x = 582,085,373.58 × 129,310,930.44 - Step 4: Simplify right side
388,186,723.08x = 75,270,001,253,144,800 - Step 5: Solve for x
x = 75,270,001,253,144,800/388,186,723.08 - Step 6: Final answer
x = 193,901,534.44
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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.