Finding the Fourth Proportional to 11,678,884.96, 15,999,806.36 and 11,242,230.40
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Solution
The fourth proportional to 11,678,884.96, 15,999,806.36 and 11,242,230.40 is: 15,401,599.56
Step by Step Solution
- Step 1: Write the proportion equation
11,678,884.96 : 15,999,806.36 = 11,242,230.40 : x - Step 2: Convert to fraction form
11,678,884.96/15,999,806.36 = 11,242,230.40/x - Step 3: Cross multiply
11,678,884.96x = 15,999,806.36 × 11,242,230.40 - Step 4: Simplify right side
11,678,884.96x = 179,873,509,454,505.34 - Step 5: Solve for x
x = 179,873,509,454,505.34/11,678,884.96 - Step 6: Final answer
x = 15,401,599.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.