Finding the Fourth Proportional to 13,582,432.53, 18,737,574.00 and 8,072,676.44
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Solution
The fourth proportional to 13,582,432.53, 18,737,574.00 and 8,072,676.44 is: 11,136,618.71
Step by Step Solution
- Step 1: Write the proportion equation
13,582,432.53 : 18,737,574.00 = 8,072,676.44 : x - Step 2: Convert to fraction form
13,582,432.53/18,737,574.00 = 8,072,676.44/x - Step 3: Cross multiply
13,582,432.53x = 18,737,574.00 × 8,072,676.44 - Step 4: Simplify right side
13,582,432.53x = 151,262,372,155,555.47 - Step 5: Solve for x
x = 151,262,372,155,555.47/13,582,432.53 - Step 6: Final answer
x = 11,136,618.71
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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.