Finding the Fourth Proportional to 11,432,578.95, 15,776,380.09 and 6,786,562.63
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Solution
The fourth proportional to 11,432,578.95, 15,776,380.09 and 6,786,562.63 is: 9,365,112.81
Step by Step Solution
- Step 1: Write the proportion equation
11,432,578.95 : 15,776,380.09 = 6,786,562.63 : x - Step 2: Convert to fraction form
11,432,578.95/15,776,380.09 = 6,786,562.63/x - Step 3: Cross multiply
11,432,578.95x = 15,776,380.09 × 6,786,562.63 - Step 4: Simplify right side
11,432,578.95x = 107,067,391,555,470.03 - Step 5: Solve for x
x = 107,067,391,555,470.03/11,432,578.95 - Step 6: Final answer
x = 9,365,112.81
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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.