Finding the Fourth Proportional to 149,486,563.80, 224,229,845.70 and 68,864,995.80
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Solution
The fourth proportional to 149,486,563.80, 224,229,845.70 and 68,864,995.80 is: 103,297,493.70
Step by Step Solution
- Step 1: Write the proportion equation
149,486,563.80 : 224,229,845.70 = 68,864,995.80 : x - Step 2: Convert to fraction form
149,486,563.80/224,229,845.70 = 68,864,995.80/x - Step 3: Cross multiply
149,486,563.80x = 224,229,845.70 × 68,864,995.80 - Step 4: Simplify right side
149,486,563.80x = 15,441,587,382,365,146 - Step 5: Solve for x
x = 15,441,587,382,365,146/149,486,563.80 - Step 6: Final answer
x = 103,297,493.70
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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.