Finding the Fourth Proportional to 2,125,766,412.40, 3,188,649,618.60 and 745,082,694.40
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Solution
The fourth proportional to 2,125,766,412.40, 3,188,649,618.60 and 745,082,694.40 is: 1,117,624,041.60
Step by Step Solution
- Step 1: Write the proportion equation
2,125,766,412.40 : 3,188,649,618.60 = 745,082,694.40 : x - Step 2: Convert to fraction form
2,125,766,412.40/3,188,649,618.60 = 745,082,694.40/x - Step 3: Cross multiply
2,125,766,412.40x = 3,188,649,618.60 × 745,082,694.40 - Step 4: Simplify right side
2,125,766,412.40x = 2,375,807,649,324,020,224 - Step 5: Solve for x
x = 2,375,807,649,324,020,224/2,125,766,412.40 - Step 6: Final answer
x = 1,117,624,041.60
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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.