Finding the Fourth Proportional to 5,447,762.78, 7,517,356.42 and 3,354,272.75
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Solution
The fourth proportional to 5,447,762.78, 7,517,356.42 and 3,354,272.75 is: 4,628,553.92
Step by Step Solution
- Step 1: Write the proportion equation
5,447,762.78 : 7,517,356.42 = 3,354,272.75 : x - Step 2: Convert to fraction form
5,447,762.78/7,517,356.42 = 3,354,272.75/x - Step 3: Cross multiply
5,447,762.78x = 7,517,356.42 × 3,354,272.75 - Step 4: Simplify right side
5,447,762.78x = 25,215,263,787,197.96 - Step 5: Solve for x
x = 25,215,263,787,197.96/5,447,762.78 - Step 6: Final answer
x = 4,628,553.92
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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.