Finding the Fourth Proportional to 321,563,312.20, 482,347,884.30 and 91,532,306.44
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Solution
The fourth proportional to 321,563,312.20, 482,347,884.30 and 91,532,306.44 is: 137,299,289.69
Step by Step Solution
- Step 1: Write the proportion equation
321,563,312.20 : 482,347,884.30 = 91,532,306.44 : x - Step 2: Convert to fraction form
321,563,312.20/482,347,884.30 = 91,532,306.44/x - Step 3: Cross multiply
321,563,312.20x = 482,347,884.30 × 91,532,306.44 - Step 4: Simplify right side
321,563,312.20x = 44,150,414,356,433,264 - Step 5: Solve for x
x = 44,150,414,356,433,264/321,563,312.20 - Step 6: Final answer
x = 137,299,289.69
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.