Finding the Fourth Proportional to 768,394,518.18, 1,060,384,777.47 and 415,970,497.50
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Solution
The fourth proportional to 768,394,518.18, 1,060,384,777.47 and 415,970,497.50 is: 574,039,471.90
Step by Step Solution
- Step 1: Write the proportion equation
768,394,518.18 : 1,060,384,777.47 = 415,970,497.50 : x - Step 2: Convert to fraction form
768,394,518.18/1,060,384,777.47 = 415,970,497.50/x - Step 3: Cross multiply
768,394,518.18x = 1,060,384,777.47 × 415,970,497.50 - Step 4: Simplify right side
768,394,518.18x = 441,088,783,425,622,720 - Step 5: Solve for x
x = 441,088,783,425,622,720/768,394,518.18 - Step 6: Final answer
x = 574,039,471.90
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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.