Finding the Fourth Proportional to 308,494,553.40, 425,723,292.18 and 167,365,766.70
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Solution
The fourth proportional to 308,494,553.40, 425,723,292.18 and 167,365,766.70 is: 230,965,196.67
Step by Step Solution
- Step 1: Write the proportion equation
308,494,553.40 : 425,723,292.18 = 167,365,766.70 : x - Step 2: Convert to fraction form
308,494,553.40/425,723,292.18 = 167,365,766.70/x - Step 3: Cross multiply
308,494,553.40x = 425,723,292.18 × 167,365,766.70 - Step 4: Simplify right side
308,494,553.40x = 71,251,505,197,753,808 - Step 5: Solve for x
x = 71,251,505,197,753,808/308,494,553.40 - Step 6: Final answer
x = 230,965,196.67
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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.