Finding the Fourth Proportional to 18,374,781.70, 27,560,073.02 and 4,912,659.46
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Solution
The fourth proportional to 18,374,781.70, 27,560,073.02 and 4,912,659.46 is: 7,368,427.86
Step by Step Solution
- Step 1: Write the proportion equation
18,374,781.70 : 27,560,073.02 = 4,912,659.46 : x - Step 2: Convert to fraction form
18,374,781.70/27,560,073.02 = 4,912,659.46/x - Step 3: Cross multiply
18,374,781.70x = 27,560,073.02 × 4,912,659.46 - Step 4: Simplify right side
18,374,781.70x = 135,393,253,383,375.23 - Step 5: Solve for x
x = 135,393,253,383,375.23/18,374,781.70 - Step 6: Final answer
x = 7,368,427.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.