Finding the Fourth Proportional to 7,209,147.87, 10,812,343.68 and 2,160,458.37
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Solution
The fourth proportional to 7,209,147.87, 10,812,343.68 and 2,160,458.37 is: 3,240,274.55
Step by Step Solution
- Step 1: Write the proportion equation
7,209,147.87 : 10,812,343.68 = 2,160,458.37 : x - Step 2: Convert to fraction form
7,209,147.87/10,812,343.68 = 2,160,458.37/x - Step 3: Cross multiply
7,209,147.87x = 10,812,343.68 × 2,160,458.37 - Step 4: Simplify right side
7,209,147.87x = 23,359,618,402,772.60 - Step 5: Solve for x
x = 23,359,618,402,772.60/7,209,147.87 - Step 6: Final answer
x = 3,240,274.55
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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.