Finding the Fourth Proportional to 26,858,790.80, 40,202,455.80 and 21,190,086.80
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Solution
The fourth proportional to 26,858,790.80, 40,202,455.80 and 21,190,086.80 is: 31,717,493.70
Step by Step Solution
- Step 1: Write the proportion equation
26,858,790.80 : 40,202,455.80 = 21,190,086.80 : x - Step 2: Convert to fraction form
26,858,790.80/40,202,455.80 = 21,190,086.80/x - Step 3: Cross multiply
26,858,790.80x = 40,202,455.80 × 21,190,086.80 - Step 4: Simplify right side
26,858,790.80x = 851,893,527,975,163.38 - Step 5: Solve for x
x = 851,893,527,975,163.38/26,858,790.80 - Step 6: Final answer
x = 31,717,493.70
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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.