Finding the Fourth Proportional to 18,134,840.70, 27,202,261.05 and 14,025,030.30
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Solution
The fourth proportional to 18,134,840.70, 27,202,261.05 and 14,025,030.30 is: 21,037,545.45
Step by Step Solution
- Step 1: Write the proportion equation
18,134,840.70 : 27,202,261.05 = 14,025,030.30 : x - Step 2: Convert to fraction form
18,134,840.70/27,202,261.05 = 14,025,030.30/x - Step 3: Cross multiply
18,134,840.70x = 27,202,261.05 × 14,025,030.30 - Step 4: Simplify right side
18,134,840.70x = 381,512,535,454,759.88 - Step 5: Solve for x
x = 381,512,535,454,759.88/18,134,840.70 - Step 6: Final answer
x = 21,037,545.45
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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.