Finding the Fourth Proportional to 13,382,652.48, 18,467,458.56 and 7,581,315.84
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Solution
The fourth proportional to 13,382,652.48, 18,467,458.56 and 7,581,315.84 is: 10,461,874.90
Step by Step Solution
- Step 1: Write the proportion equation
13,382,652.48 : 18,467,458.56 = 7,581,315.84 : x - Step 2: Convert to fraction form
13,382,652.48/18,467,458.56 = 7,581,315.84/x - Step 3: Cross multiply
13,382,652.48x = 18,467,458.56 × 7,581,315.84 - Step 4: Simplify right side
13,382,652.48x = 140,007,636,105,471.58 - Step 5: Solve for x
x = 140,007,636,105,471.58/13,382,652.48 - Step 6: Final answer
x = 10,461,874.90
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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.