Finding the Fourth Proportional to 5,173,853.99, 7,140,080.39 and 2,969,120.15
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Solution
The fourth proportional to 5,173,853.99, 7,140,080.39 and 2,969,120.15 is: 4,097,478.71
Step by Step Solution
- Step 1: Write the proportion equation
5,173,853.99 : 7,140,080.39 = 2,969,120.15 : x - Step 2: Convert to fraction form
5,173,853.99/7,140,080.39 = 2,969,120.15/x - Step 3: Cross multiply
5,173,853.99x = 7,140,080.39 × 2,969,120.15 - Step 4: Simplify right side
5,173,853.99x = 21,199,756,591,662.41 - Step 5: Solve for x
x = 21,199,756,591,662.41/5,173,853.99 - Step 6: Final answer
x = 4,097,478.71
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.