Finding the Fourth Proportional to 19,830,791.65, 29,747,553.97 and 8,304,653.76
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Solution
The fourth proportional to 19,830,791.65, 29,747,553.97 and 8,304,653.76 is: 12,457,552.90
Step by Step Solution
- Step 1: Write the proportion equation
19,830,791.65 : 29,747,553.97 = 8,304,653.76 : x - Step 2: Convert to fraction form
19,830,791.65/29,747,553.97 = 8,304,653.76/x - Step 3: Cross multiply
19,830,791.65x = 29,747,553.97 × 8,304,653.76 - Step 4: Simplify right side
19,830,791.65x = 247,043,136,049,697.59 - Step 5: Solve for x
x = 247,043,136,049,697.59/19,830,791.65 - Step 6: Final answer
x = 12,457,552.90
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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.