Finding the Fourth Proportional to 12,449,847.20, 18,664,402.80 and 5,266,896.80
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Solution
The fourth proportional to 12,449,847.20, 18,664,402.80 and 5,266,896.80 is: 7,895,959.03
Step by Step Solution
- Step 1: Write the proportion equation
12,449,847.20 : 18,664,402.80 = 5,266,896.80 : x - Step 2: Convert to fraction form
12,449,847.20/18,664,402.80 = 5,266,896.80/x - Step 3: Cross multiply
12,449,847.20x = 18,664,402.80 × 5,266,896.80 - Step 4: Simplify right side
12,449,847.20x = 98,303,483,381,231.05 - Step 5: Solve for x
x = 98,303,483,381,231.05/12,449,847.20 - Step 6: Final answer
x = 7,895,959.03
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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.