Finding the Fourth Proportional to 19,729,571.20, 29,386,314.02 and 18,844,348.49
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Solution
The fourth proportional to 19,729,571.20, 29,386,314.02 and 18,844,348.49 is: 28,067,814.38
Step by Step Solution
- Step 1: Write the proportion equation
19,729,571.20 : 29,386,314.02 = 18,844,348.49 : x - Step 2: Convert to fraction form
19,729,571.20/29,386,314.02 = 18,844,348.49/x - Step 3: Cross multiply
19,729,571.20x = 29,386,314.02 × 18,844,348.49 - Step 4: Simplify right side
19,729,571.20x = 553,765,942,239,830.81 - Step 5: Solve for x
x = 553,765,942,239,830.81/19,729,571.20 - Step 6: Final answer
x = 28,067,814.38
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.