Finding the Fourth Proportional to 32,078,721.70, 48,118,082.55 and 19,324,137.70
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Solution
The fourth proportional to 32,078,721.70, 48,118,082.55 and 19,324,137.70 is: 28,986,206.55
Step by Step Solution
- Step 1: Write the proportion equation
32,078,721.70 : 48,118,082.55 = 19,324,137.70 : x - Step 2: Convert to fraction form
32,078,721.70/48,118,082.55 = 19,324,137.70/x - Step 3: Cross multiply
32,078,721.70x = 48,118,082.55 × 19,324,137.70 - Step 4: Simplify right side
32,078,721.70x = 929,840,453,056,167 - Step 5: Solve for x
x = 929,840,453,056,167/32,078,721.70 - Step 6: Final answer
x = 28,986,206.55
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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.