Finding the Fourth Proportional to 420,933,076.11, 580,599,416.84 and 274,453,764.75
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Solution
The fourth proportional to 420,933,076.11, 580,599,416.84 and 274,453,764.75 is: 378,558,266.87
Step by Step Solution
- Step 1: Write the proportion equation
420,933,076.11 : 580,599,416.84 = 274,453,764.75 : x - Step 2: Convert to fraction form
420,933,076.11/580,599,416.84 = 274,453,764.75/x - Step 3: Cross multiply
420,933,076.11x = 580,599,416.84 × 274,453,764.75 - Step 4: Simplify right side
420,933,076.11x = 159,347,695,762,020,288 - Step 5: Solve for x
x = 159,347,695,762,020,288/420,933,076.11 - Step 6: Final answer
x = 378,558,266.87
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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.