Finding the Fourth Proportional to 13,351,953.75, 18,425,696.18 and 7,240,387.11
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Solution
The fourth proportional to 13,351,953.75, 18,425,696.18 and 7,240,387.11 is: 9,991,734.21
Step by Step Solution
- Step 1: Write the proportion equation
13,351,953.75 : 18,425,696.18 = 7,240,387.11 : x - Step 2: Convert to fraction form
13,351,953.75/18,425,696.18 = 7,240,387.11/x - Step 3: Cross multiply
13,351,953.75x = 18,425,696.18 × 7,240,387.11 - Step 4: Simplify right side
13,351,953.75x = 133,409,173,078,246.31 - Step 5: Solve for x
x = 133,409,173,078,246.31/13,351,953.75 - Step 6: Final answer
x = 9,991,734.21
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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.