Finding the Fourth Proportional to 330,261,640.20, 495,392,460.30 and 100,230,355.80
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Solution
The fourth proportional to 330,261,640.20, 495,392,460.30 and 100,230,355.80 is: 150,345,533.70
Step by Step Solution
- Step 1: Write the proportion equation
330,261,640.20 : 495,392,460.30 = 100,230,355.80 : x - Step 2: Convert to fraction form
330,261,640.20/495,392,460.30 = 100,230,355.80/x - Step 3: Cross multiply
330,261,640.20x = 495,392,460.30 × 100,230,355.80 - Step 4: Simplify right side
330,261,640.20x = 49,653,362,556,506,376 - Step 5: Solve for x
x = 49,653,362,556,506,376/330,261,640.20 - Step 6: Final answer
x = 150,345,533.70
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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.