Finding the Fourth Proportional to 38,465,381.70, 57,698,072.55 and 11,539,037.70
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Solution
The fourth proportional to 38,465,381.70, 57,698,072.55 and 11,539,037.70 is: 17,308,556.55
Step by Step Solution
- Step 1: Write the proportion equation
38,465,381.70 : 57,698,072.55 = 11,539,037.70 : x - Step 2: Convert to fraction form
38,465,381.70/57,698,072.55 = 11,539,037.70/x - Step 3: Cross multiply
38,465,381.70x = 57,698,072.55 × 11,539,037.70 - Step 4: Simplify right side
38,465,381.70x = 665,780,234,371,785 - Step 5: Solve for x
x = 665,780,234,371,785/38,465,381.70 - Step 6: Final answer
x = 17,308,556.55
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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.