Finding the Fourth Proportional to 11,691,640.36, 16,134,803.54 and 6,393,646.76
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Solution
The fourth proportional to 11,691,640.36, 16,134,803.54 and 6,393,646.76 is: 8,823,418.37
Step by Step Solution
- Step 1: Write the proportion equation
11,691,640.36 : 16,134,803.54 = 6,393,646.76 : x - Step 2: Convert to fraction form
11,691,640.36/16,134,803.54 = 6,393,646.76/x - Step 3: Cross multiply
11,691,640.36x = 16,134,803.54 × 6,393,646.76 - Step 4: Simplify right side
11,691,640.36x = 103,160,234,376,757.52 - Step 5: Solve for x
x = 103,160,234,376,757.52/11,691,640.36 - Step 6: Final answer
x = 8,823,418.37
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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.