Finding the Fourth Proportional to 11,236,874.49, 15,517,365.53 and 8,270,686.28
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Solution
The fourth proportional to 11,236,874.49, 15,517,365.53 and 8,270,686.28 is: 11,421,259.74
Step by Step Solution
- Step 1: Write the proportion equation
11,236,874.49 : 15,517,365.53 = 8,270,686.28 : x - Step 2: Convert to fraction form
11,236,874.49/15,517,365.53 = 8,270,686.28/x - Step 3: Cross multiply
11,236,874.49x = 15,517,365.53 × 8,270,686.28 - Step 4: Simplify right side
11,236,874.49x = 128,339,262,190,715.92 - Step 5: Solve for x
x = 128,339,262,190,715.92/11,236,874.49 - Step 6: Final answer
x = 11,421,259.74
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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.