Finding the Fourth Proportional to 19,728,991.80, 29,551,497.30 and 16,369,759.80
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Solution
The fourth proportional to 19,728,991.80, 29,551,497.30 and 16,369,759.80 is: 24,519,798.96
Step by Step Solution
- Step 1: Write the proportion equation
19,728,991.80 : 29,551,497.30 = 16,369,759.80 : x - Step 2: Convert to fraction form
19,728,991.80/29,551,497.30 = 16,369,759.80/x - Step 3: Cross multiply
19,728,991.80x = 29,551,497.30 × 16,369,759.80 - Step 4: Simplify right side
19,728,991.80x = 483,750,912,531,348.56 - Step 5: Solve for x
x = 483,750,912,531,348.56/19,728,991.80 - Step 6: Final answer
x = 24,519,798.96
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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.