Finding the Fourth Proportional to 129,037,062,015.80, 193,555,593,023.70 and 102,915,673,983.80
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Solution
The fourth proportional to 129,037,062,015.80, 193,555,593,023.70 and 102,915,673,983.80 is: 154,373,510,975.70
Step by Step Solution
- Step 1: Write the proportion equation
129,037,062,015.80 : 193,555,593,023.70 = 102,915,673,983.80 : x - Step 2: Convert to fraction form
129,037,062,015.80/193,555,593,023.70 = 102,915,673,983.80/x - Step 3: Cross multiply
129,037,062,015.80x = 193,555,593,023.70 × 102,915,673,983.80 - Step 4: Simplify right side
129,037,062,015.80x = 19,919,904,309,368,183,586,816 - Step 5: Solve for x
x = 19,919,904,309,368,183,586,816/129,037,062,015.80 - Step 6: Final answer
x = 154,373,510,975.70
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1.5x scale
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.