Finding the Fourth Proportional to 194,280,420.20, 291,420,630.30 and 79,202,229.80
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Solution
The fourth proportional to 194,280,420.20, 291,420,630.30 and 79,202,229.80 is: 118,803,344.70
Step by Step Solution
- Step 1: Write the proportion equation
194,280,420.20 : 291,420,630.30 = 79,202,229.80 : x - Step 2: Convert to fraction form
194,280,420.20/291,420,630.30 = 79,202,229.80/x - Step 3: Cross multiply
194,280,420.20x = 291,420,630.30 × 79,202,229.80 - Step 4: Simplify right side
194,280,420.20x = 23,081,163,729,481,444 - Step 5: Solve for x
x = 23,081,163,729,481,444/194,280,420.20 - Step 6: Final answer
x = 118,803,344.70
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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.