Finding the Fourth Proportional to 66,663,745.20, 99,925,274.97 and 35,949,965.13
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Solution
The fourth proportional to 66,663,745.20, 99,925,274.97 and 35,949,965.13 is: 53,887,013.70
Step by Step Solution
- Step 1: Write the proportion equation
66,663,745.20 : 99,925,274.97 = 35,949,965.13 : x - Step 2: Convert to fraction form
66,663,745.20/99,925,274.97 = 35,949,965.13/x - Step 3: Cross multiply
66,663,745.20x = 99,925,274.97 × 35,949,965.13 - Step 4: Simplify right side
66,663,745.20x = 3,592,310,150,777,162 - Step 5: Solve for x
x = 3,592,310,150,777,162/66,663,745.20 - Step 6: Final answer
x = 53,887,013.70
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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.