Finding the Fourth Proportional to 11,479,357.80, 15,841,620.90 and 6,322,738.28
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Solution
The fourth proportional to 11,479,357.80, 15,841,620.90 and 6,322,738.28 is: 8,725,437.84
Step by Step Solution
- Step 1: Write the proportion equation
11,479,357.80 : 15,841,620.90 = 6,322,738.28 : x - Step 2: Convert to fraction form
11,479,357.80/15,841,620.90 = 6,322,738.28/x - Step 3: Cross multiply
11,479,357.80x = 15,841,620.90 × 6,322,738.28 - Step 4: Simplify right side
11,479,357.80x = 100,162,422,881,678.06 - Step 5: Solve for x
x = 100,162,422,881,678.06/11,479,357.80 - Step 6: Final answer
x = 8,725,437.84
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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.