Finding the Fourth Proportional to 11,143,856.26, 15,381,787.17 and 7,276,977.82
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Solution
The fourth proportional to 11,143,856.26, 15,381,787.17 and 7,276,977.82 is: 10,044,361.80
Step by Step Solution
- Step 1: Write the proportion equation
11,143,856.26 : 15,381,787.17 = 7,276,977.82 : x - Step 2: Convert to fraction form
11,143,856.26/15,381,787.17 = 7,276,977.82/x - Step 3: Cross multiply
11,143,856.26x = 15,381,787.17 × 7,276,977.82 - Step 4: Simplify right side
11,143,856.26x = 111,932,924,068,050.58 - Step 5: Solve for x
x = 111,932,924,068,050.58/11,143,856.26 - Step 6: Final answer
x = 10,044,361.80
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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.