Finding the Fourth Proportional to 19,816,934.80, 29,689,972.80 and 16,982,582.80
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Solution
The fourth proportional to 19,816,934.80, 29,689,972.80 and 16,982,582.80 is: 25,443,512.15
Step by Step Solution
- Step 1: Write the proportion equation
19,816,934.80 : 29,689,972.80 = 16,982,582.80 : x - Step 2: Convert to fraction form
19,816,934.80/29,689,972.80 = 16,982,582.80/x - Step 3: Cross multiply
19,816,934.80x = 29,689,972.80 × 16,982,582.80 - Step 4: Simplify right side
19,816,934.80x = 504,212,421,405,747.88 - Step 5: Solve for x
x = 504,212,421,405,747.88/19,816,934.80 - Step 6: Final answer
x = 25,443,512.15
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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.