Finding the Fourth Proportional to 318,560,178.86, 439,635,141.50 and 193,117,662.19
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Solution
The fourth proportional to 318,560,178.86, 439,635,141.50 and 193,117,662.19 is: 266,515,768.06
Step by Step Solution
- Step 1: Write the proportion equation
318,560,178.86 : 439,635,141.50 = 193,117,662.19 : x - Step 2: Convert to fraction form
318,560,178.86/439,635,141.50 = 193,117,662.19/x - Step 3: Cross multiply
318,560,178.86x = 439,635,141.50 × 193,117,662.19 - Step 4: Simplify right side
318,560,178.86x = 84,901,310,743,049,856 - Step 5: Solve for x
x = 84,901,310,743,049,856/318,560,178.86 - Step 6: Final answer
x = 266,515,768.06
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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.