Finding the Fourth Proportional to 6,838,837.24, 9,436,671.12 and 3,899,033.68
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Solution
The fourth proportional to 6,838,837.24, 9,436,671.12 and 3,899,033.68 is: 5,380,139.52
Step by Step Solution
- Step 1: Write the proportion equation
6,838,837.24 : 9,436,671.12 = 3,899,033.68 : x - Step 2: Convert to fraction form
6,838,837.24/9,436,671.12 = 3,899,033.68/x - Step 3: Cross multiply
6,838,837.24x = 9,436,671.12 × 3,899,033.68 - Step 4: Simplify right side
6,838,837.24x = 36,793,898,523,963.32 - Step 5: Solve for x
x = 36,793,898,523,963.32/6,838,837.24 - Step 6: Final answer
x = 5,380,139.52
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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.