Finding the Fourth Proportional to 18,454,270.40, 27,681,405.60 and 8,219,110.40
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Solution
The fourth proportional to 18,454,270.40, 27,681,405.60 and 8,219,110.40 is: 12,328,665.60
Step by Step Solution
- Step 1: Write the proportion equation
18,454,270.40 : 27,681,405.60 = 8,219,110.40 : x - Step 2: Convert to fraction form
18,454,270.40/27,681,405.60 = 8,219,110.40/x - Step 3: Cross multiply
18,454,270.40x = 27,681,405.60 × 8,219,110.40 - Step 4: Simplify right side
18,454,270.40x = 227,516,528,653,578.25 - Step 5: Solve for x
x = 227,516,528,653,578.25/18,454,270.40 - Step 6: Final answer
x = 12,328,665.60
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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.