Finding the Fourth Proportional to 18,444,328.40, 27,670,639.80 and 5,665,422.80
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Solution
The fourth proportional to 18,444,328.40, 27,670,639.80 and 5,665,422.80 is: 8,499,408.07
Step by Step Solution
- Step 1: Write the proportion equation
18,444,328.40 : 27,670,639.80 = 5,665,422.80 : x - Step 2: Convert to fraction form
18,444,328.40/27,670,639.80 = 5,665,422.80/x - Step 3: Cross multiply
18,444,328.40x = 27,670,639.80 × 5,665,422.80 - Step 4: Simplify right side
18,444,328.40x = 156,765,873,613,507.44 - Step 5: Solve for x
x = 156,765,873,613,507.44/18,444,328.40 - Step 6: Final answer
x = 8,499,408.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.