Finding the Fourth Proportional to 11,508,107.15, 15,881,109.72 and 6,351,468.68
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Solution
The fourth proportional to 11,508,107.15, 15,881,109.72 and 6,351,468.68 is: 8,764,983.65
Step by Step Solution
- Step 1: Write the proportion equation
11,508,107.15 : 15,881,109.72 = 6,351,468.68 : x - Step 2: Convert to fraction form
11,508,107.15/15,881,109.72 = 6,351,468.68/x - Step 3: Cross multiply
11,508,107.15x = 15,881,109.72 × 6,351,468.68 - Step 4: Simplify right side
11,508,107.15x = 100,868,370,990,223.56 - Step 5: Solve for x
x = 100,868,370,990,223.56/11,508,107.15 - Step 6: Final answer
x = 8,764,983.65
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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.