Finding the Fourth Proportional to 2,192,195,310.40, 3,288,292,965.60 and 556,419,912.40
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Solution
The fourth proportional to 2,192,195,310.40, 3,288,292,965.60 and 556,419,912.40 is: 834,629,868.60
Step by Step Solution
- Step 1: Write the proportion equation
2,192,195,310.40 : 3,288,292,965.60 = 556,419,912.40 : x - Step 2: Convert to fraction form
2,192,195,310.40/3,288,292,965.60 = 556,419,912.40/x - Step 3: Cross multiply
2,192,195,310.40x = 3,288,292,965.60 × 556,419,912.40 - Step 4: Simplify right side
2,192,195,310.40x = 1,829,671,683,864,688,128 - Step 5: Solve for x
x = 1,829,671,683,864,688,128/2,192,195,310.40 - Step 6: Final answer
x = 834,629,868.60
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1.5x scale
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.