Finding the Fourth Proportional to 120,290,191.68, 180,511,190.28 and 51,202,885.08
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Solution
The fourth proportional to 120,290,191.68, 180,511,190.28 and 51,202,885.08 is: 76,836,636.49
Step by Step Solution
- Step 1: Write the proportion equation
120,290,191.68 : 180,511,190.28 = 51,202,885.08 : x - Step 2: Convert to fraction form
120,290,191.68/180,511,190.28 = 51,202,885.08/x - Step 3: Cross multiply
120,290,191.68x = 180,511,190.28 × 51,202,885.08 - Step 4: Simplify right side
120,290,191.68x = 9,242,693,731,560,852 - Step 5: Solve for x
x = 9,242,693,731,560,852/120,290,191.68 - Step 6: Final answer
x = 76,836,636.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.