Finding the Fourth Proportional to 21,583,720.96, 29,785,173.72 and 11,793,939.40
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Solution
The fourth proportional to 21,583,720.96, 29,785,173.72 and 11,793,939.40 is: 16,275,439.00
Step by Step Solution
- Step 1: Write the proportion equation
21,583,720.96 : 29,785,173.72 = 11,793,939.40 : x - Step 2: Convert to fraction form
21,583,720.96/29,785,173.72 = 11,793,939.40/x - Step 3: Cross multiply
21,583,720.96x = 29,785,173.72 × 11,793,939.40 - Step 4: Simplify right side
21,583,720.96x = 351,284,533,872,152.56 - Step 5: Solve for x
x = 351,284,533,872,152.56/21,583,720.96 - Step 6: Final answer
x = 16,275,439.00
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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.