Finding the Fourth Proportional to 3,997,926.12, 5,517,268.44 and 2,187,090.12
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Solution
The fourth proportional to 3,997,926.12, 5,517,268.44 and 2,187,090.12 is: 3,018,255.70
Step by Step Solution
- Step 1: Write the proportion equation
3,997,926.12 : 5,517,268.44 = 2,187,090.12 : x - Step 2: Convert to fraction form
3,997,926.12/5,517,268.44 = 2,187,090.12/x - Step 3: Cross multiply
3,997,926.12x = 5,517,268.44 × 2,187,090.12 - Step 4: Simplify right side
3,997,926.12x = 12,066,763,294,511.81 - Step 5: Solve for x
x = 12,066,763,294,511.81/3,997,926.12 - Step 6: Final answer
x = 3,018,255.70
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1.5x scale
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.