Finding the Fourth Proportional to 7,509,078.40, 11,263,617.60 and 3,246,275.20
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Solution
The fourth proportional to 7,509,078.40, 11,263,617.60 and 3,246,275.20 is: 4,869,412.80
Step by Step Solution
- Step 1: Write the proportion equation
7,509,078.40 : 11,263,617.60 = 3,246,275.20 : x - Step 2: Convert to fraction form
7,509,078.40/11,263,617.60 = 3,246,275.20/x - Step 3: Cross multiply
7,509,078.40x = 11,263,617.60 × 3,246,275.20 - Step 4: Simplify right side
7,509,078.40x = 36,564,802,477,163.52 - Step 5: Solve for x
x = 36,564,802,477,163.52/7,509,078.40 - Step 6: Final answer
x = 4,869,412.80
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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.