Finding the Fourth Proportional to 11,268,987.20, 16,903,480.80 and 3,290,811.20
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Solution
The fourth proportional to 11,268,987.20, 16,903,480.80 and 3,290,811.20 is: 4,936,216.80
Step by Step Solution
- Step 1: Write the proportion equation
11,268,987.20 : 16,903,480.80 = 3,290,811.20 : x - Step 2: Convert to fraction form
11,268,987.20/16,903,480.80 = 3,290,811.20/x - Step 3: Cross multiply
11,268,987.20x = 16,903,480.80 × 3,290,811.20 - Step 4: Simplify right side
11,268,987.20x = 55,626,163,935,624.97 - Step 5: Solve for x
x = 55,626,163,935,624.97/11,268,987.20 - Step 6: Final answer
x = 4,936,216.80
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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.