Finding the Fourth Proportional to 157,512,595.28, 217,353,198.84 and 98,756,478.32
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Solution
The fourth proportional to 157,512,595.28, 217,353,198.84 and 98,756,478.32 is: 136,275,047.92
Step by Step Solution
- Step 1: Write the proportion equation
157,512,595.28 : 217,353,198.84 = 98,756,478.32 : x - Step 2: Convert to fraction form
157,512,595.28/217,353,198.84 = 98,756,478.32/x - Step 3: Cross multiply
157,512,595.28x = 217,353,198.84 × 98,756,478.32 - Step 4: Simplify right side
157,512,595.28x = 21,465,036,469,025,108 - Step 5: Solve for x
x = 21,465,036,469,025,108/157,512,595.28 - Step 6: Final answer
x = 136,275,047.92
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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.