Finding the Fourth Proportional to 128,350,735.26, 177,128,024.12 and 72,595,064.64
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Solution
The fourth proportional to 128,350,735.26, 177,128,024.12 and 72,595,064.64 is: 100,183,456.95
Step by Step Solution
- Step 1: Write the proportion equation
128,350,735.26 : 177,128,024.12 = 72,595,064.64 : x - Step 2: Convert to fraction form
128,350,735.26/177,128,024.12 = 72,595,064.64/x - Step 3: Cross multiply
128,350,735.26x = 177,128,024.12 × 72,595,064.64 - Step 4: Simplify right side
128,350,735.26x = 12,858,620,360,546,880 - Step 5: Solve for x
x = 12,858,620,360,546,880/128,350,735.26 - Step 6: Final answer
x = 100,183,456.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.