Finding the Fourth Proportional to 7,402,766.58, 10,193,107.64 and 6,479,830.71
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Solution
The fourth proportional to 7,402,766.58, 10,193,107.64 and 6,479,830.71 is: 8,922,287.52
Step by Step Solution
- Step 1: Write the proportion equation
7,402,766.58 : 10,193,107.64 = 6,479,830.71 : x - Step 2: Convert to fraction form
7,402,766.58/10,193,107.64 = 6,479,830.71/x - Step 3: Cross multiply
7,402,766.58x = 10,193,107.64 × 6,479,830.71 - Step 4: Simplify right side
7,402,766.58x = 66,049,611,883,608.47 - Step 5: Solve for x
x = 66,049,611,883,608.47/7,402,766.58 - Step 6: Final answer
x = 8,922,287.52
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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.