Finding the Fourth Proportional to 11,479,356.80, 15,841,619.52 and 6,322,737.28
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Solution
The fourth proportional to 11,479,356.80, 15,841,619.52 and 6,322,737.28 is: 8,725,436.46
Step by Step Solution
- Step 1: Write the proportion equation
11,479,356.80 : 15,841,619.52 = 6,322,737.28 : x - Step 2: Convert to fraction form
11,479,356.80/15,841,619.52 = 6,322,737.28/x - Step 3: Cross multiply
11,479,356.80x = 15,841,619.52 × 6,322,737.28 - Step 4: Simplify right side
11,479,356.80x = 100,162,398,314,679.70 - Step 5: Solve for x
x = 100,162,398,314,679.70/11,479,356.80 - Step 6: Final answer
x = 8,725,436.46
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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.