Finding the Fourth Proportional to 5,782,455.38, 7,979,963.38 and 3,203,894.90
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Solution
The fourth proportional to 5,782,455.38, 7,979,963.38 and 3,203,894.90 is: 4,421,471.90
Step by Step Solution
- Step 1: Write the proportion equation
5,782,455.38 : 7,979,963.38 = 3,203,894.90 : x - Step 2: Convert to fraction form
5,782,455.38/7,979,963.38 = 3,203,894.90/x - Step 3: Cross multiply
5,782,455.38x = 7,979,963.38 × 3,203,894.90 - Step 4: Simplify right side
5,782,455.38x = 25,566,963,927,459.21 - Step 5: Solve for x
x = 25,566,963,927,459.21/5,782,455.38 - Step 6: Final answer
x = 4,421,471.90
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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.