Finding the Fourth Proportional to 7,926,498,082.80, 11,889,747,124.20 and 2,405,747,257.20
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Solution
The fourth proportional to 7,926,498,082.80, 11,889,747,124.20 and 2,405,747,257.20 is: 3,608,620,885.80
Step by Step Solution
- Step 1: Write the proportion equation
7,926,498,082.80 : 11,889,747,124.20 = 2,405,747,257.20 : x - Step 2: Convert to fraction form
7,926,498,082.80/11,889,747,124.20 = 2,405,747,257.20/x - Step 3: Cross multiply
7,926,498,082.80x = 11,889,747,124.20 × 2,405,747,257.20 - Step 4: Simplify right side
7,926,498,082.80x = 28,603,726,532,845,735,936 - Step 5: Solve for x
x = 28,603,726,532,845,735,936/7,926,498,082.80 - Step 6: Final answer
x = 3,608,620,885.80
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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.