Finding the Fourth Proportional to 13,286,747.70, 19,930,121.55 and 7,224,383.70
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Solution
The fourth proportional to 13,286,747.70, 19,930,121.55 and 7,224,383.70 is: 10,836,575.55
Step by Step Solution
- Step 1: Write the proportion equation
13,286,747.70 : 19,930,121.55 = 7,224,383.70 : x - Step 2: Convert to fraction form
13,286,747.70/19,930,121.55 = 7,224,383.70/x - Step 3: Cross multiply
13,286,747.70x = 19,930,121.55 × 7,224,383.70 - Step 4: Simplify right side
13,286,747.70x = 143,982,845,264,838.75 - Step 5: Solve for x
x = 143,982,845,264,838.75/13,286,747.70 - Step 6: Final answer
x = 10,836,575.55
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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.