Finding the Fourth Proportional to 177,146,019.20, 265,719,028.80 and 159,230,115.20
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Solution
The fourth proportional to 177,146,019.20, 265,719,028.80 and 159,230,115.20 is: 238,845,172.80
Step by Step Solution
- Step 1: Write the proportion equation
177,146,019.20 : 265,719,028.80 = 159,230,115.20 : x - Step 2: Convert to fraction form
177,146,019.20/265,719,028.80 = 159,230,115.20/x - Step 3: Cross multiply
177,146,019.20x = 265,719,028.80 × 159,230,115.20 - Step 4: Simplify right side
177,146,019.20x = 42,310,471,566,656,120 - Step 5: Solve for x
x = 42,310,471,566,656,120/177,146,019.20 - Step 6: Final answer
x = 238,845,172.80
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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.