Finding the Fourth Proportional to 129,310,223.70, 193,965,335.55 and 129,310,223.70
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Solution
The fourth proportional to 129,310,223.70, 193,965,335.55 and 129,310,223.70 is: 193,965,335.55
Step by Step Solution
- Step 1: Write the proportion equation
129,310,223.70 : 193,965,335.55 = 129,310,223.70 : x - Step 2: Convert to fraction form
129,310,223.70/193,965,335.55 = 129,310,223.70/x - Step 3: Cross multiply
129,310,223.70x = 193,965,335.55 × 129,310,223.70 - Step 4: Simplify right side
129,310,223.70x = 25,081,700,930,016,064 - Step 5: Solve for x
x = 25,081,700,930,016,064/129,310,223.70 - Step 6: Final answer
x = 193,965,335.55
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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.