Finding the Fourth Proportional to 21,806,106.19, 30,092,625.57 and 12,016,901.62
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Solution
The fourth proportional to 21,806,106.19, 30,092,625.57 and 12,016,901.62 is: 16,583,433.92
Step by Step Solution
- Step 1: Write the proportion equation
21,806,106.19 : 30,092,625.57 = 12,016,901.62 : x - Step 2: Convert to fraction form
21,806,106.19/30,092,625.57 = 12,016,901.62/x - Step 3: Cross multiply
21,806,106.19x = 30,092,625.57 × 12,016,901.62 - Step 4: Simplify right side
21,806,106.19x = 361,620,120,962,186.38 - Step 5: Solve for x
x = 361,620,120,962,186.38/21,806,106.19 - Step 6: Final answer
x = 16,583,433.92
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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.