Finding the Fourth Proportional to 1,782,649,204.40, 2,673,973,806.60 and 862,618,545.20
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Solution
The fourth proportional to 1,782,649,204.40, 2,673,973,806.60 and 862,618,545.20 is: 1,293,927,817.80
Step by Step Solution
- Step 1: Write the proportion equation
1,782,649,204.40 : 2,673,973,806.60 = 862,618,545.20 : x - Step 2: Convert to fraction form
1,782,649,204.40/2,673,973,806.60 = 862,618,545.20/x - Step 3: Cross multiply
1,782,649,204.40x = 2,673,973,806.60 × 862,618,545.20 - Step 4: Simplify right side
1,782,649,204.40x = 2,306,619,394,952,198,144 - Step 5: Solve for x
x = 2,306,619,394,952,198,144/1,782,649,204.40 - Step 6: Final answer
x = 1,293,927,817.80
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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.