Finding the Fourth Proportional to 5,209,949.44, 7,819,968.84 and 2,516,168.08
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Solution
The fourth proportional to 5,209,949.44, 7,819,968.84 and 2,516,168.08 is: 3,776,688.47
Step by Step Solution
- Step 1: Write the proportion equation
5,209,949.44 : 7,819,968.84 = 2,516,168.08 : x - Step 2: Convert to fraction form
5,209,949.44/7,819,968.84 = 2,516,168.08/x - Step 3: Cross multiply
5,209,949.44x = 7,819,968.84 × 2,516,168.08 - Step 4: Simplify right side
5,209,949.44x = 19,676,355,981,802.63 - Step 5: Solve for x
x = 19,676,355,981,802.63/5,209,949.44 - Step 6: Final answer
x = 3,776,688.47
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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.