Finding the Fourth Proportional to 12,159,638.19, 18,283,208.22 and 11,211,690.74
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Solution
The fourth proportional to 12,159,638.19, 18,283,208.22 and 11,211,690.74 is: 16,857,876.28
Step by Step Solution
- Step 1: Write the proportion equation
12,159,638.19 : 18,283,208.22 = 11,211,690.74 : x - Step 2: Convert to fraction form
12,159,638.19/18,283,208.22 = 11,211,690.74/x - Step 3: Cross multiply
12,159,638.19x = 18,283,208.22 × 11,211,690.74 - Step 4: Simplify right side
12,159,638.19x = 204,985,676,206,249.81 - Step 5: Solve for x
x = 204,985,676,206,249.81/12,159,638.19 - Step 6: Final answer
x = 16,857,876.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.