Finding the Fourth Proportional to 440,909,745.36, 661,378,942.22 and 129,991,288.56
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Solution
The fourth proportional to 440,909,745.36, 661,378,942.22 and 129,991,288.56 is: 194,991,155.97
Step by Step Solution
- Step 1: Write the proportion equation
440,909,745.36 : 661,378,942.22 = 129,991,288.56 : x - Step 2: Convert to fraction form
440,909,745.36/661,378,942.22 = 129,991,288.56/x - Step 3: Cross multiply
440,909,745.36x = 661,378,942.22 × 129,991,288.56 - Step 4: Simplify right side
440,909,745.36x = 85,973,500,925,627,600 - Step 5: Solve for x
x = 85,973,500,925,627,600/440,909,745.36 - Step 6: Final answer
x = 194,991,155.97
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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.