Finding the Fourth Proportional to 129,029,338.60, 193,544,007.90 and 118,727,693.80
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Solution
The fourth proportional to 129,029,338.60, 193,544,007.90 and 118,727,693.80 is: 178,091,540.70
Step by Step Solution
- Step 1: Write the proportion equation
129,029,338.60 : 193,544,007.90 = 118,727,693.80 : x - Step 2: Convert to fraction form
129,029,338.60/193,544,007.90 = 118,727,693.80/x - Step 3: Cross multiply
129,029,338.60x = 193,544,007.90 × 118,727,693.80 - Step 4: Simplify right side
129,029,338.60x = 22,979,033,706,775,980 - Step 5: Solve for x
x = 22,979,033,706,775,980/129,029,338.60 - Step 6: Final answer
x = 178,091,540.70
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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.