Finding the Fourth Proportional to 21,527,278.86, 29,710,167.75 and 12,236,244.14
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Solution
The fourth proportional to 21,527,278.86, 29,710,167.75 and 12,236,244.14 is: 16,887,450.95
Step by Step Solution
- Step 1: Write the proportion equation
21,527,278.86 : 29,710,167.75 = 12,236,244.14 : x - Step 2: Convert to fraction form
21,527,278.86/29,710,167.75 = 12,236,244.14/x - Step 3: Cross multiply
21,527,278.86x = 29,710,167.75 × 12,236,244.14 - Step 4: Simplify right side
21,527,278.86x = 363,540,865,880,803.62 - Step 5: Solve for x
x = 363,540,865,880,803.62/21,527,278.86 - Step 6: Final answer
x = 16,887,450.95
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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.