Finding the Fourth Proportional to 6,407,311.64, 8,844,640.98 and 4,203,013.28
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Solution
The fourth proportional to 6,407,311.64, 8,844,640.98 and 4,203,013.28 is: 5,801,831.65
Step by Step Solution
- Step 1: Write the proportion equation
6,407,311.64 : 8,844,640.98 = 4,203,013.28 : x - Step 2: Convert to fraction form
6,407,311.64/8,844,640.98 = 4,203,013.28/x - Step 3: Cross multiply
6,407,311.64x = 8,844,640.98 × 4,203,013.28 - Step 4: Simplify right side
6,407,311.64x = 37,174,143,495,772.22 - Step 5: Solve for x
x = 37,174,143,495,772.22/6,407,311.64 - Step 6: Final answer
x = 5,801,831.65
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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.