Finding the Fourth Proportional to 3,198,230.66, 4,818,923.99 and 2,642,071.10
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Solution
The fourth proportional to 3,198,230.66, 4,818,923.99 and 2,642,071.10 is: 3,980,932.32
Step by Step Solution
- Step 1: Write the proportion equation
3,198,230.66 : 4,818,923.99 = 2,642,071.10 : x - Step 2: Convert to fraction form
3,198,230.66/4,818,923.99 = 2,642,071.10/x - Step 3: Cross multiply
3,198,230.66x = 4,818,923.99 × 2,642,071.10 - Step 4: Simplify right side
3,198,230.66x = 12,731,939,807,075.69 - Step 5: Solve for x
x = 12,731,939,807,075.69/3,198,230.66 - Step 6: Final answer
x = 3,980,932.32
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.