Finding the Fourth Proportional to 19,743,815.40, 29,593,604.70 and 11,228,231.40
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Solution
The fourth proportional to 19,743,815.40, 29,593,604.70 and 11,228,231.40 is: 16,829,768.45
Step by Step Solution
- Step 1: Write the proportion equation
19,743,815.40 : 29,593,604.70 = 11,228,231.40 : x - Step 2: Convert to fraction form
19,743,815.40/29,593,604.70 = 11,228,231.40/x - Step 3: Cross multiply
19,743,815.40x = 29,593,604.70 × 11,228,231.40 - Step 4: Simplify right side
19,743,815.40x = 332,283,841,531,727.56 - Step 5: Solve for x
x = 332,283,841,531,727.56/19,743,815.40 - Step 6: Final answer
x = 16,829,768.45
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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.