Finding the Fourth Proportional to 579,881,757.99, 800,236,956.56 and 319,121,373.99
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Solution
The fourth proportional to 579,881,757.99, 800,236,956.56 and 319,121,373.99 is: 440,387,567.94
Step by Step Solution
- Step 1: Write the proportion equation
579,881,757.99 : 800,236,956.56 = 319,121,373.99 : x - Step 2: Convert to fraction form
579,881,757.99/800,236,956.56 = 319,121,373.99/x - Step 3: Cross multiply
579,881,757.99x = 800,236,956.56 × 319,121,373.99 - Step 4: Simplify right side
579,881,757.99x = 255,372,717,093,407,520 - Step 5: Solve for x
x = 255,372,717,093,407,520/579,881,757.99 - Step 6: Final answer
x = 440,387,567.94
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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.