Finding the Fourth Proportional to 4,914,783.64, 6,782,432.85 and 2,739,464.68
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Solution
The fourth proportional to 4,914,783.64, 6,782,432.85 and 2,739,464.68 is: 3,780,478.78
Step by Step Solution
- Step 1: Write the proportion equation
4,914,783.64 : 6,782,432.85 = 2,739,464.68 : x - Step 2: Convert to fraction form
4,914,783.64/6,782,432.85 = 2,739,464.68/x - Step 3: Cross multiply
4,914,783.64x = 6,782,432.85 × 2,739,464.68 - Step 4: Simplify right side
4,914,783.64x = 18,580,235,237,046.74 - Step 5: Solve for x
x = 18,580,235,237,046.74/4,914,783.64 - Step 6: Final answer
x = 3,780,478.78
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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.