Finding the Fourth Proportional to 388,295,420.63, 582,524,931.60 and 125,959,487.75
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Solution
The fourth proportional to 388,295,420.63, 582,524,931.60 and 125,959,487.75 is: 188,965,767.01
Step by Step Solution
- Step 1: Write the proportion equation
388,295,420.63 : 582,524,931.60 = 125,959,487.75 : x - Step 2: Convert to fraction form
388,295,420.63/582,524,931.60 = 125,959,487.75/x - Step 3: Cross multiply
388,295,420.63x = 582,524,931.60 × 125,959,487.75 - Step 4: Simplify right side
388,295,420.63x = 73,374,541,983,027,168 - Step 5: Solve for x
x = 73,374,541,983,027,168/388,295,420.63 - Step 6: Final answer
x = 188,965,767.01
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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.