Finding the Fourth Proportional to 252,801,253.80, 378,635,010.30 and 207,451,621.80
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Solution
The fourth proportional to 252,801,253.80, 378,635,010.30 and 207,451,621.80 is: 310,712,252.32
Step by Step Solution
- Step 1: Write the proportion equation
252,801,253.80 : 378,635,010.30 = 207,451,621.80 : x - Step 2: Convert to fraction form
252,801,253.80/378,635,010.30 = 207,451,621.80/x - Step 3: Cross multiply
252,801,253.80x = 378,635,010.30 × 207,451,621.80 - Step 4: Simplify right side
252,801,253.80x = 78,548,446,956,994,704 - Step 5: Solve for x
x = 78,548,446,956,994,704/252,801,253.80 - Step 6: Final answer
x = 310,712,252.32
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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.