Finding the Fourth Proportional to 13,236,402.38, 18,260,569.26 and 8,266,215.11
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Solution
The fourth proportional to 13,236,402.38, 18,260,569.26 and 8,266,215.11 is: 11,403,838.38
Step by Step Solution
- Step 1: Write the proportion equation
13,236,402.38 : 18,260,569.26 = 8,266,215.11 : x - Step 2: Convert to fraction form
13,236,402.38/18,260,569.26 = 8,266,215.11/x - Step 3: Cross multiply
13,236,402.38x = 18,260,569.26 × 8,266,215.11 - Step 4: Simplify right side
13,236,402.38x = 150,945,793,442,910.69 - Step 5: Solve for x
x = 150,945,793,442,910.69/13,236,402.38 - Step 6: Final answer
x = 11,403,838.38
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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.