Finding the Fourth Proportional to 21,694,235.70, 29,930,630 and 12,395,133.56
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Solution
The fourth proportional to 21,694,235.70, 29,930,630 and 12,395,133.56 is: 17,101,047.56
Step by Step Solution
- Step 1: Write the proportion equation
21,694,235.70 : 29,930,630 = 12,395,133.56 : x - Step 2: Convert to fraction form
21,694,235.70/29,930,630 = 12,395,133.56/x - Step 3: Cross multiply
21,694,235.70x = 29,930,630 × 12,395,133.56 - Step 4: Simplify right side
21,694,235.70x = 370,994,156,384,942.81 - Step 5: Solve for x
x = 370,994,156,384,942.81/21,694,235.70 - Step 6: Final answer
x = 17,101,047.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.