Finding the Fourth Proportional to 7,402,772.58, 10,193,115.92 and 6,479,836.71
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Solution
The fourth proportional to 7,402,772.58, 10,193,115.92 and 6,479,836.71 is: 8,922,295.80
Step by Step Solution
- Step 1: Write the proportion equation
7,402,772.58 : 10,193,115.92 = 6,479,836.71 : x - Step 2: Convert to fraction form
7,402,772.58/10,193,115.92 = 6,479,836.71/x - Step 3: Cross multiply
7,402,772.58x = 10,193,115.92 × 6,479,836.71 - Step 4: Simplify right side
7,402,772.58x = 66,049,726,695,302.23 - Step 5: Solve for x
x = 66,049,726,695,302.23/7,402,772.58 - Step 6: Final answer
x = 8,922,295.80
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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.