Finding the Fourth Proportional to 5,656,321.40, 7,805,887.62 and 3,078,168.44
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Solution
The fourth proportional to 5,656,321.40, 7,805,887.62 and 3,078,168.44 is: 4,247,961.74
Step by Step Solution
- Step 1: Write the proportion equation
5,656,321.40 : 7,805,887.62 = 3,078,168.44 : x - Step 2: Convert to fraction form
5,656,321.40/7,805,887.62 = 3,078,168.44/x - Step 3: Cross multiply
5,656,321.40x = 7,805,887.62 × 3,078,168.44 - Step 4: Simplify right side
5,656,321.40x = 24,027,836,918,070.71 - Step 5: Solve for x
x = 24,027,836,918,070.71/5,656,321.40 - Step 6: Final answer
x = 4,247,961.74
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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.