Finding the Fourth Proportional to 256,260,672.08, 384,456,530.76 and 74,507,850.08
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Solution
The fourth proportional to 256,260,672.08, 384,456,530.76 and 74,507,850.08 is: 111,780,825.84
Step by Step Solution
- Step 1: Write the proportion equation
256,260,672.08 : 384,456,530.76 = 74,507,850.08 : x - Step 2: Convert to fraction form
256,260,672.08/384,456,530.76 = 74,507,850.08/x - Step 3: Cross multiply
256,260,672.08x = 384,456,530.76 × 74,507,850.08 - Step 4: Simplify right side
256,260,672.08x = 28,645,029,556,142,988 - Step 5: Solve for x
x = 28,645,029,556,142,988/256,260,672.08 - Step 6: Final answer
x = 111,780,825.84
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1.5x scale
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.