Finding the Fourth Proportional to 11,475,787.32, 15,836,586.48 and 6,319,136.58
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Solution
The fourth proportional to 11,475,787.32, 15,836,586.48 and 6,319,136.58 is: 8,720,408.47
Step by Step Solution
- Step 1: Write the proportion equation
11,475,787.32 : 15,836,586.48 = 6,319,136.58 : x - Step 2: Convert to fraction form
11,475,787.32/15,836,586.48 = 6,319,136.58/x - Step 3: Cross multiply
11,475,787.32x = 15,836,586.48 × 6,319,136.58 - Step 4: Simplify right side
11,475,787.32x = 100,073,552,928,101.44 - Step 5: Solve for x
x = 100,073,552,928,101.44/11,475,787.32 - Step 6: Final answer
x = 8,720,408.47
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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.