Finding the Fourth Proportional to 782,929,997.88, 1,080,474,527.34 and 430,534,879.80
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Solution
The fourth proportional to 782,929,997.88, 1,080,474,527.34 and 430,534,879.80 is: 594,155,252.72
Step by Step Solution
- Step 1: Write the proportion equation
782,929,997.88 : 1,080,474,527.34 = 430,534,879.80 : x - Step 2: Convert to fraction form
782,929,997.88/1,080,474,527.34 = 430,534,879.80/x - Step 3: Cross multiply
782,929,997.88x = 1,080,474,527.34 × 430,534,879.80 - Step 4: Simplify right side
782,929,997.88x = 465,181,970,755,288,704 - Step 5: Solve for x
x = 465,181,970,755,288,704/782,929,997.88 - Step 6: Final answer
x = 594,155,252.72
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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.