Finding the Fourth Proportional to 13,687,942.14, 18,888,790.49 and 7,492,834.99
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Solution
The fourth proportional to 13,687,942.14, 18,888,790.49 and 7,492,834.99 is: 10,339,800.45
Step by Step Solution
- Step 1: Write the proportion equation
13,687,942.14 : 18,888,790.49 = 7,492,834.99 : x - Step 2: Convert to fraction form
13,687,942.14/18,888,790.49 = 7,492,834.99/x - Step 3: Cross multiply
13,687,942.14x = 18,888,790.49 × 7,492,834.99 - Step 4: Simplify right side
13,687,942.14x = 141,530,590,252,393.94 - Step 5: Solve for x
x = 141,530,590,252,393.94/13,687,942.14 - Step 6: Final answer
x = 10,339,800.45
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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.