Finding the Fourth Proportional to 12,419,187.68, 17,138,348.06 and 6,912,474.78
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Solution
The fourth proportional to 12,419,187.68, 17,138,348.06 and 6,912,474.78 is: 9,539,142.32
Step by Step Solution
- Step 1: Write the proportion equation
12,419,187.68 : 17,138,348.06 = 6,912,474.78 : x - Step 2: Convert to fraction form
12,419,187.68/17,138,348.06 = 6,912,474.78/x - Step 3: Cross multiply
12,419,187.68x = 17,138,348.06 × 6,912,474.78 - Step 4: Simplify right side
12,419,187.68x = 118,468,398,735,611.92 - Step 5: Solve for x
x = 118,468,398,735,611.92/12,419,187.68 - Step 6: Final answer
x = 9,539,142.32
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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.