Finding the Fourth Proportional to 10,368,742.40, 15,545,740.80 and 3,976,524.80
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Solution
The fourth proportional to 10,368,742.40, 15,545,740.80 and 3,976,524.80 is: 5,961,959.65
Step by Step Solution
- Step 1: Write the proportion equation
10,368,742.40 : 15,545,740.80 = 3,976,524.80 : x - Step 2: Convert to fraction form
10,368,742.40/15,545,740.80 = 3,976,524.80/x - Step 3: Cross multiply
10,368,742.40x = 15,545,740.80 × 3,976,524.80 - Step 4: Simplify right side
10,368,742.40x = 61,818,023,825,571.84 - Step 5: Solve for x
x = 61,818,023,825,571.84/10,368,742.40 - Step 6: Final answer
x = 5,961,959.65
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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.