Finding the Fourth Proportional to 99,743,428.80, 149,709,621.60 and 61,479,676.80
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Solution
The fourth proportional to 99,743,428.80, 149,709,621.60 and 61,479,676.80 is: 92,277,749.63
Step by Step Solution
- Step 1: Write the proportion equation
99,743,428.80 : 149,709,621.60 = 61,479,676.80 : x - Step 2: Convert to fraction form
99,743,428.80/149,709,621.60 = 61,479,676.80/x - Step 3: Cross multiply
99,743,428.80x = 149,709,621.60 × 61,479,676.80 - Step 4: Simplify right side
99,743,428.80x = 9,204,099,149,818,298 - Step 5: Solve for x
x = 9,204,099,149,818,298/99,743,428.80 - Step 6: Final answer
x = 92,277,749.63
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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.