Finding the Fourth Proportional to 331,128,790.70, 496,693,186.05 and 101,067,981.80
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Solution
The fourth proportional to 331,128,790.70, 496,693,186.05 and 101,067,981.80 is: 151,601,972.70
Step by Step Solution
- Step 1: Write the proportion equation
331,128,790.70 : 496,693,186.05 = 101,067,981.80 : x - Step 2: Convert to fraction form
331,128,790.70/496,693,186.05 = 101,067,981.80/x - Step 3: Cross multiply
331,128,790.70x = 496,693,186.05 × 101,067,981.80 - Step 4: Simplify right side
331,128,790.70x = 50,199,777,887,885,416 - Step 5: Solve for x
x = 50,199,777,887,885,416/331,128,790.70 - Step 6: Final answer
x = 151,601,972.70
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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.