Finding the Fourth Proportional to 13,044,833.68, 18,003,531.54 and 7,888,232.20
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Solution
The fourth proportional to 13,044,833.68, 18,003,531.54 and 7,888,232.20 is: 10,886,764.88
Step by Step Solution
- Step 1: Write the proportion equation
13,044,833.68 : 18,003,531.54 = 7,888,232.20 : x - Step 2: Convert to fraction form
13,044,833.68/18,003,531.54 = 7,888,232.20/x - Step 3: Cross multiply
13,044,833.68x = 18,003,531.54 × 7,888,232.20 - Step 4: Simplify right side
13,044,833.68x = 142,016,037,207,543.59 - Step 5: Solve for x
x = 142,016,037,207,543.59/13,044,833.68 - Step 6: Final answer
x = 10,886,764.88
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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.