Finding the Fourth Proportional to 330,190,109.10, 495,285,163.65 and 186,862,877.10
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Solution
The fourth proportional to 330,190,109.10, 495,285,163.65 and 186,862,877.10 is: 280,294,315.65
Step by Step Solution
- Step 1: Write the proportion equation
330,190,109.10 : 495,285,163.65 = 186,862,877.10 : x - Step 2: Convert to fraction form
330,190,109.10/495,285,163.65 = 186,862,877.10/x - Step 3: Cross multiply
330,190,109.10x = 495,285,163.65 × 186,862,877.10 - Step 4: Simplify right side
330,190,109.10x = 92,550,410,664,583,328 - Step 5: Solve for x
x = 92,550,410,664,583,328/330,190,109.10 - Step 6: Final answer
x = 280,294,315.65
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Similar ratio
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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.