Finding the Fourth Proportional to 398,171,409.80, 597,257,114.70 and 330,146,961.80
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Solution
The fourth proportional to 398,171,409.80, 597,257,114.70 and 330,146,961.80 is: 495,220,442.70
Step by Step Solution
- Step 1: Write the proportion equation
398,171,409.80 : 597,257,114.70 = 330,146,961.80 : x - Step 2: Convert to fraction form
398,171,409.80/597,257,114.70 = 330,146,961.80/x - Step 3: Cross multiply
398,171,409.80x = 597,257,114.70 × 330,146,961.80 - Step 4: Simplify right side
398,171,409.80x = 197,182,621,831,639,136 - Step 5: Solve for x
x = 197,182,621,831,639,136/398,171,409.80 - Step 6: Final answer
x = 495,220,442.70
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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.