Finding the Fourth Proportional to 395,080,635.46, 545,244,757.73 and 218,923,887.19
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Solution
The fourth proportional to 395,080,635.46, 545,244,757.73 and 218,923,887.19 is: 302,133,516.85
Step by Step Solution
- Step 1: Write the proportion equation
395,080,635.46 : 545,244,757.73 = 218,923,887.19 : x - Step 2: Convert to fraction form
395,080,635.46/545,244,757.73 = 218,923,887.19/x - Step 3: Cross multiply
395,080,635.46x = 545,244,757.73 × 218,923,887.19 - Step 4: Simplify right side
395,080,635.46x = 119,367,101,832,221,408 - Step 5: Solve for x
x = 119,367,101,832,221,408/395,080,635.46 - Step 6: Final answer
x = 302,133,516.85
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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.