Finding the Fourth Proportional to 19,764,367.20, 29,646,550.80 and 6,985,288.80
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Solution
The fourth proportional to 19,764,367.20, 29,646,550.80 and 6,985,288.80 is: 10,477,933.20
Step by Step Solution
- Step 1: Write the proportion equation
19,764,367.20 : 29,646,550.80 = 6,985,288.80 : x - Step 2: Convert to fraction form
19,764,367.20/29,646,550.80 = 6,985,288.80/x - Step 3: Cross multiply
19,764,367.20x = 29,646,550.80 × 6,985,288.80 - Step 4: Simplify right side
19,764,367.20x = 207,089,719,261,871.03 - Step 5: Solve for x
x = 207,089,719,261,871.03/19,764,367.20 - Step 6: Final answer
x = 10,477,933.20
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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.