Finding the Fourth Proportional to 512,635,440.87, 707,440,305.33 and 277,686,101.34
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Solution
The fourth proportional to 512,635,440.87, 707,440,305.33 and 277,686,101.34 is: 383,208,659.91
Step by Step Solution
- Step 1: Write the proportion equation
512,635,440.87 : 707,440,305.33 = 277,686,101.34 : x - Step 2: Convert to fraction form
512,635,440.87/707,440,305.33 = 277,686,101.34/x - Step 3: Cross multiply
512,635,440.87x = 707,440,305.33 × 277,686,101.34 - Step 4: Simplify right side
512,635,440.87x = 196,446,340,317,866,912 - Step 5: Solve for x
x = 196,446,340,317,866,912/512,635,440.87 - Step 6: Final answer
x = 383,208,659.91
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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.