Finding the Fourth Proportional to 197,520,324.72, 295,079,139.84 and 127,865,680.80
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Solution
The fourth proportional to 197,520,324.72, 295,079,139.84 and 127,865,680.80 is: 191,020,823.60
Step by Step Solution
- Step 1: Write the proportion equation
197,520,324.72 : 295,079,139.84 = 127,865,680.80 : x - Step 2: Convert to fraction form
197,520,324.72/295,079,139.84 = 127,865,680.80/x - Step 3: Cross multiply
197,520,324.72x = 295,079,139.84 × 127,865,680.80 - Step 4: Simplify right side
197,520,324.72x = 37,730,495,105,520,000 - Step 5: Solve for x
x = 37,730,495,105,520,000/197,520,324.72 - Step 6: Final answer
x = 191,020,823.60
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.