Finding the Fourth Proportional to 21,195,313.95, 29,247,865.79 and 12,027,956.70
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Solution
The fourth proportional to 21,195,313.95, 29,247,865.79 and 12,027,956.70 is: 16,597,633.99
Step by Step Solution
- Step 1: Write the proportion equation
21,195,313.95 : 29,247,865.79 = 12,027,956.70 : x - Step 2: Convert to fraction form
21,195,313.95/29,247,865.79 = 12,027,956.70/x - Step 3: Cross multiply
21,195,313.95x = 29,247,865.79 × 12,027,956.70 - Step 4: Simplify right side
21,195,313.95x = 351,792,063,229,391.50 - Step 5: Solve for x
x = 351,792,063,229,391.50/21,195,313.95 - Step 6: Final answer
x = 16,597,633.99
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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.