Finding the Fourth Proportional to 393,701,126.99, 543,324,060.86 and 226,437,434.87
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Solution
The fourth proportional to 393,701,126.99, 543,324,060.86 and 226,437,434.87 is: 312,493,153.33
Step by Step Solution
- Step 1: Write the proportion equation
393,701,126.99 : 543,324,060.86 = 226,437,434.87 : x - Step 2: Convert to fraction form
393,701,126.99/543,324,060.86 = 226,437,434.87/x - Step 3: Cross multiply
393,701,126.99x = 543,324,060.86 × 226,437,434.87 - Step 4: Simplify right side
393,701,126.99x = 123,028,906,640,441,376 - Step 5: Solve for x
x = 123,028,906,640,441,376/393,701,126.99 - Step 6: Final answer
x = 312,493,153.33
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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.