Finding the Fourth Proportional to 20,157,481.62, 27,819,686.22 and 11,456,962.08
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Solution
The fourth proportional to 20,157,481.62, 27,819,686.22 and 11,456,962.08 is: 15,811,949.93
Step by Step Solution
- Step 1: Write the proportion equation
20,157,481.62 : 27,819,686.22 = 11,456,962.08 : x - Step 2: Convert to fraction form
20,157,481.62/27,819,686.22 = 11,456,962.08/x - Step 3: Cross multiply
20,157,481.62x = 27,819,686.22 × 11,456,962.08 - Step 4: Simplify right side
20,157,481.62x = 318,729,090,100,038.50 - Step 5: Solve for x
x = 318,729,090,100,038.50/20,157,481.62 - Step 6: Final answer
x = 15,811,949.93
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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.