Finding the Fourth Proportional to 19,949,600.58, 27,529,898.94 and 11,247,697.68
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Solution
The fourth proportional to 19,949,600.58, 27,529,898.94 and 11,247,697.68 is: 15,521,512.78
Step by Step Solution
- Step 1: Write the proportion equation
19,949,600.58 : 27,529,898.94 = 11,247,697.68 : x - Step 2: Convert to fraction form
19,949,600.58/27,529,898.94 = 11,247,697.68/x - Step 3: Cross multiply
19,949,600.58x = 27,529,898.94 × 11,247,697.68 - Step 4: Simplify right side
19,949,600.58x = 309,647,980,438,072.44 - Step 5: Solve for x
x = 309,647,980,438,072.44/19,949,600.58 - Step 6: Final answer
x = 15,521,512.78
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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.