Finding the Fourth Proportional to 1,469,771,824.80, 2,204,657,737.20 and 979,995,799.20
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Solution
The fourth proportional to 1,469,771,824.80, 2,204,657,737.20 and 979,995,799.20 is: 1,469,993,698.80
Step by Step Solution
- Step 1: Write the proportion equation
1,469,771,824.80 : 2,204,657,737.20 = 979,995,799.20 : x - Step 2: Convert to fraction form
1,469,771,824.80/2,204,657,737.20 = 979,995,799.20/x - Step 3: Cross multiply
1,469,771,824.80x = 2,204,657,737.20 × 979,995,799.20 - Step 4: Simplify right side
1,469,771,824.80x = 2,160,555,321,129,777,408 - Step 5: Solve for x
x = 2,160,555,321,129,777,408/1,469,771,824.80 - Step 6: Final answer
x = 1,469,993,698.80
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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.