Finding the Fourth Proportional to 13,020,278.40, 19,475,121.60 and 11,682,115.20
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Solution
The fourth proportional to 13,020,278.40, 19,475,121.60 and 11,682,115.20 is: 17,473,559.86
Step by Step Solution
- Step 1: Write the proportion equation
13,020,278.40 : 19,475,121.60 = 11,682,115.20 : x - Step 2: Convert to fraction form
13,020,278.40/19,475,121.60 = 11,682,115.20/x - Step 3: Cross multiply
13,020,278.40x = 19,475,121.60 × 11,682,115.20 - Step 4: Simplify right side
13,020,278.40x = 227,510,614,065,208.31 - Step 5: Solve for x
x = 227,510,614,065,208.31/13,020,278.40 - Step 6: Final answer
x = 17,473,559.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.