Finding the Fourth Proportional to 388,373,066.49, 582,564,648.12 and 129,588,286.74
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Solution
The fourth proportional to 388,373,066.49, 582,564,648.12 and 129,588,286.74 is: 194,384,114.60
Step by Step Solution
- Step 1: Write the proportion equation
388,373,066.49 : 582,564,648.12 = 129,588,286.74 : x - Step 2: Convert to fraction form
388,373,066.49/582,564,648.12 = 129,588,286.74/x - Step 3: Cross multiply
388,373,066.49x = 582,564,648.12 × 129,588,286.74 - Step 4: Simplify right side
388,373,066.49x = 75,493,554,665,161,760 - Step 5: Solve for x
x = 75,493,554,665,161,760/388,373,066.49 - Step 6: Final answer
x = 194,384,114.60
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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.