Finding the Fourth Proportional to 39,183,237.32, 54,072,902.12 and 21,542,440.05
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Solution
The fourth proportional to 39,183,237.32, 54,072,902.12 and 21,542,440.05 is: 29,728,586.30
Step by Step Solution
- Step 1: Write the proportion equation
39,183,237.32 : 54,072,902.12 = 21,542,440.05 : x - Step 2: Convert to fraction form
39,183,237.32/54,072,902.12 = 21,542,440.05/x - Step 3: Cross multiply
39,183,237.32x = 54,072,902.12 × 21,542,440.05 - Step 4: Simplify right side
39,183,237.32x = 1,164,862,252,141,905.75 - Step 5: Solve for x
x = 1,164,862,252,141,905.75/39,183,237.32 - Step 6: Final answer
x = 29,728,586.30
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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.