Finding the Fourth Proportional to 1,440,593,861.80, 1,987,252,662 and 876,251,349.48
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Solution
The fourth proportional to 1,440,593,861.80, 1,987,252,662 and 876,251,349.48 is: 1,208,760,409.86
Step by Step Solution
- Step 1: Write the proportion equation
1,440,593,861.80 : 1,987,252,662 = 876,251,349.48 : x - Step 2: Convert to fraction form
1,440,593,861.80/1,987,252,662 = 876,251,349.48/x - Step 3: Cross multiply
1,440,593,861.80x = 1,987,252,662 × 876,251,349.48 - Step 4: Simplify right side
1,440,593,861.80x = 1,741,332,826,835,222,272 - Step 5: Solve for x
x = 1,741,332,826,835,222,272/1,440,593,861.80 - Step 6: Final answer
x = 1,208,760,409.86
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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.