Finding the Fourth Proportional to 98,697,861.87, 136,212,189.02 and 54,644,861.44
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Solution
The fourth proportional to 98,697,861.87, 136,212,189.02 and 54,644,861.44 is: 75,414,969.02
Step by Step Solution
- Step 1: Write the proportion equation
98,697,861.87 : 136,212,189.02 = 54,644,861.44 : x - Step 2: Convert to fraction form
98,697,861.87/136,212,189.02 = 54,644,861.44/x - Step 3: Cross multiply
98,697,861.87x = 136,212,189.02 × 54,644,861.44 - Step 4: Simplify right side
98,697,861.87x = 7,443,296,195,436,990 - Step 5: Solve for x
x = 7,443,296,195,436,990/98,697,861.87 - Step 6: Final answer
x = 75,414,969.02
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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.