Finding the Fourth Proportional to 4,939,886.81, 6,813,880.53 and 3,962,171.84
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Solution
The fourth proportional to 4,939,886.81, 6,813,880.53 and 3,962,171.84 is: 5,465,259.95
Step by Step Solution
- Step 1: Write the proportion equation
4,939,886.81 : 6,813,880.53 = 3,962,171.84 : x - Step 2: Convert to fraction form
4,939,886.81/6,813,880.53 = 3,962,171.84/x - Step 3: Cross multiply
4,939,886.81x = 6,813,880.53 × 3,962,171.84 - Step 4: Simplify right side
4,939,886.81x = 26,997,765,557,090.27 - Step 5: Solve for x
x = 26,997,765,557,090.27/4,939,886.81 - Step 6: Final answer
x = 5,465,259.95
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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.