Finding the Fourth Proportional to 268,617,696.40, 402,926,544.60 and 86,883,245.20
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Solution
The fourth proportional to 268,617,696.40, 402,926,544.60 and 86,883,245.20 is: 130,324,867.80
Step by Step Solution
- Step 1: Write the proportion equation
268,617,696.40 : 402,926,544.60 = 86,883,245.20 : x - Step 2: Convert to fraction form
268,617,696.40/402,926,544.60 = 86,883,245.20/x - Step 3: Cross multiply
268,617,696.40x = 402,926,544.60 × 86,883,245.20 - Step 4: Simplify right side
268,617,696.40x = 35,007,565,772,070,540 - Step 5: Solve for x
x = 35,007,565,772,070,540/268,617,696.40 - Step 6: Final answer
x = 130,324,867.80
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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.