Finding the Fourth Proportional to 330,277,531.20, 495,416,296.80 and 221,438,414.40
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Solution
The fourth proportional to 330,277,531.20, 495,416,296.80 and 221,438,414.40 is: 332,157,621.60
Step by Step Solution
- Step 1: Write the proportion equation
330,277,531.20 : 495,416,296.80 = 221,438,414.40 : x - Step 2: Convert to fraction form
330,277,531.20/495,416,296.80 = 221,438,414.40/x - Step 3: Cross multiply
330,277,531.20x = 495,416,296.80 × 221,438,414.40 - Step 4: Simplify right side
330,277,531.20x = 109,704,199,231,311,792 - Step 5: Solve for x
x = 109,704,199,231,311,792/330,277,531.20 - Step 6: Final answer
x = 332,157,621.60
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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.