Finding the Fourth Proportional to 23,008,059.99, 31,753,021.82 and 13,220,394.21
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Solution
The fourth proportional to 23,008,059.99, 31,753,021.82 and 13,220,394.21 is: 18,245,235.19
Step by Step Solution
- Step 1: Write the proportion equation
23,008,059.99 : 31,753,021.82 = 13,220,394.21 : x - Step 2: Convert to fraction form
23,008,059.99/31,753,021.82 = 13,220,394.21/x - Step 3: Cross multiply
23,008,059.99x = 31,753,021.82 × 13,220,394.21 - Step 4: Simplify right side
23,008,059.99x = 419,787,465,753,029.75 - Step 5: Solve for x
x = 419,787,465,753,029.75/23,008,059.99 - Step 6: Final answer
x = 18,245,235.19
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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.