Finding the Fourth Proportional to 136,982,509.62, 189,037,720.26 and 75,102,715.14
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Solution
The fourth proportional to 136,982,509.62, 189,037,720.26 and 75,102,715.14 is: 103,642,765.01
Step by Step Solution
- Step 1: Write the proportion equation
136,982,509.62 : 189,037,720.26 = 75,102,715.14 : x - Step 2: Convert to fraction form
136,982,509.62/189,037,720.26 = 75,102,715.14/x - Step 3: Cross multiply
136,982,509.62x = 189,037,720.26 × 75,102,715.14 - Step 4: Simplify right side
136,982,509.62x = 14,197,246,055,401,786 - Step 5: Solve for x
x = 14,197,246,055,401,786/136,982,509.62 - Step 6: Final answer
x = 103,642,765.01
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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.