Finding the Fourth Proportional to 189,588,371,799.36, 261,651,453,381.15 and 115,350,588,743.73
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Solution
The fourth proportional to 189,588,371,799.36, 261,651,453,381.15 and 115,350,588,743.73 is: 159,195,676,964.35
Step by Step Solution
- Step 1: Write the proportion equation
189,588,371,799.36 : 261,651,453,381.15 = 115,350,588,743.73 : x - Step 2: Convert to fraction form
189,588,371,799.36/261,651,453,381.15 = 115,350,588,743.73/x - Step 3: Cross multiply
189,588,371,799.36x = 261,651,453,381.15 × 115,350,588,743.73 - Step 4: Simplify right side
189,588,371,799.36x = 30,181,649,193,168,273,408,000 - Step 5: Solve for x
x = 30,181,649,193,168,273,408,000/189,588,371,799.36 - Step 6: Final answer
x = 159,195,676,964.35
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1.5x scale
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.