Finding the Fourth Proportional to 15,317,236.68, 21,137,717.30 and 8,441,703.88
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Solution
The fourth proportional to 15,317,236.68, 21,137,717.30 and 8,441,703.88 is: 11,649,513.15
Step by Step Solution
- Step 1: Write the proportion equation
15,317,236.68 : 21,137,717.30 = 8,441,703.88 : x - Step 2: Convert to fraction form
15,317,236.68/21,137,717.30 = 8,441,703.88/x - Step 3: Cross multiply
15,317,236.68x = 21,137,717.30 × 8,441,703.88 - Step 4: Simplify right side
15,317,236.68x = 178,438,350,145,753.16 - Step 5: Solve for x
x = 178,438,350,145,753.16/15,317,236.68 - Step 6: Final answer
x = 11,649,513.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.