Finding the Fourth Proportional to 258,691,186.51, 356,946,074.70 and 147,175,517.05
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Solution
The fourth proportional to 258,691,186.51, 356,946,074.70 and 147,175,517.05 is: 203,075,040.21
Step by Step Solution
- Step 1: Write the proportion equation
258,691,186.51 : 356,946,074.70 = 147,175,517.05 : x - Step 2: Convert to fraction form
258,691,186.51/356,946,074.70 = 147,175,517.05/x - Step 3: Cross multiply
258,691,186.51x = 356,946,074.70 × 147,175,517.05 - Step 4: Simplify right side
258,691,186.51x = 52,533,723,102,940,424 - Step 5: Solve for x
x = 52,533,723,102,940,424/258,691,186.51 - Step 6: Final answer
x = 203,075,040.21
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.