Finding the Fourth Proportional to 4,939,893.05, 6,813,889.16 and 3,962,178.09
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Solution
The fourth proportional to 4,939,893.05, 6,813,889.16 and 3,962,178.09 is: 5,465,268.59
Step by Step Solution
- Step 1: Write the proportion equation
4,939,893.05 : 6,813,889.16 = 3,962,178.09 : x - Step 2: Convert to fraction form
4,939,893.05/6,813,889.16 = 3,962,178.09/x - Step 3: Cross multiply
4,939,893.05x = 6,813,889.16 × 3,962,178.09 - Step 4: Simplify right side
4,939,893.05x = 26,997,842,317,629.61 - Step 5: Solve for x
x = 26,997,842,317,629.61/4,939,893.05 - Step 6: Final answer
x = 5,465,268.59
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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.