Finding the Fourth Proportional to 3,543,563,212.80, 5,315,344,819.20 and 1,578,412,492.80
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Solution
The fourth proportional to 3,543,563,212.80, 5,315,344,819.20 and 1,578,412,492.80 is: 2,367,618,739.20
Step by Step Solution
- Step 1: Write the proportion equation
3,543,563,212.80 : 5,315,344,819.20 = 1,578,412,492.80 : x - Step 2: Convert to fraction form
3,543,563,212.80/5,315,344,819.20 = 1,578,412,492.80/x - Step 3: Cross multiply
3,543,563,212.80x = 5,315,344,819.20 × 1,578,412,492.80 - Step 4: Simplify right side
3,543,563,212.80x = 8,389,806,666,165,037,056 - Step 5: Solve for x
x = 8,389,806,666,165,037,056/3,543,563,212.80 - Step 6: Final answer
x = 2,367,618,739.20
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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.