Finding the Fourth Proportional to 268,478,193.60, 402,717,290.40 and 225,396,043.20
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Solution
The fourth proportional to 268,478,193.60, 402,717,290.40 and 225,396,043.20 is: 338,094,064.80
Step by Step Solution
- Step 1: Write the proportion equation
268,478,193.60 : 402,717,290.40 = 225,396,043.20 : x - Step 2: Convert to fraction form
268,478,193.60/402,717,290.40 = 225,396,043.20/x - Step 3: Cross multiply
268,478,193.60x = 402,717,290.40 × 225,396,043.20 - Step 4: Simplify right side
268,478,193.60x = 90,770,883,784,385,328 - Step 5: Solve for x
x = 90,770,883,784,385,328/268,478,193.60 - Step 6: Final answer
x = 338,094,064.80
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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.