Finding the Fourth Proportional to 2,747,620.64, 3,787,336.85 and 2,165,895.74
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Solution
The fourth proportional to 2,747,620.64, 3,787,336.85 and 2,165,895.74 is: 2,985,483.74
Step by Step Solution
- Step 1: Write the proportion equation
2,747,620.64 : 3,787,336.85 = 2,165,895.74 : x - Step 2: Convert to fraction form
2,747,620.64/3,787,336.85 = 2,165,895.74/x - Step 3: Cross multiply
2,747,620.64x = 3,787,336.85 × 2,165,895.74 - Step 4: Simplify right side
2,747,620.64x = 8,202,976,749,360.02 - Step 5: Solve for x
x = 8,202,976,749,360.02/2,747,620.64 - Step 6: Final answer
x = 2,985,483.74
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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.