Finding the Fourth Proportional to 11,885,907.25, 16,402,957.49 and 6,659,135.82
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Solution
The fourth proportional to 11,885,907.25, 16,402,957.49 and 6,659,135.82 is: 9,189,834.61
Step by Step Solution
- Step 1: Write the proportion equation
11,885,907.25 : 16,402,957.49 = 6,659,135.82 : x - Step 2: Convert to fraction form
11,885,907.25/16,402,957.49 = 6,659,135.82/x - Step 3: Cross multiply
11,885,907.25x = 16,402,957.49 × 6,659,135.82 - Step 4: Simplify right side
11,885,907.25x = 109,229,521,775,596.30 - Step 5: Solve for x
x = 109,229,521,775,596.30/11,885,907.25 - Step 6: Final answer
x = 9,189,834.61
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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.