Finding the Fourth Proportional to 238,968,908.40, 358,453,362.60 and 147,135,903.60
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Solution
The fourth proportional to 238,968,908.40, 358,453,362.60 and 147,135,903.60 is: 220,703,855.40
Step by Step Solution
- Step 1: Write the proportion equation
238,968,908.40 : 358,453,362.60 = 147,135,903.60 : x - Step 2: Convert to fraction form
238,968,908.40/358,453,362.60 = 147,135,903.60/x - Step 3: Cross multiply
238,968,908.40x = 358,453,362.60 × 147,135,903.60 - Step 4: Simplify right side
238,968,908.40x = 52,741,359,404,609,448 - Step 5: Solve for x
x = 52,741,359,404,609,448/238,968,908.40 - Step 6: Final answer
x = 220,703,855.40
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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.