Finding the Fourth Proportional to 852,022,627.94, 1,278,819,571.44 and 432,138,688.62
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Solution
The fourth proportional to 852,022,627.94, 1,278,819,571.44 and 432,138,688.62 is: 648,606,497.60
Step by Step Solution
- Step 1: Write the proportion equation
852,022,627.94 : 1,278,819,571.44 = 432,138,688.62 : x - Step 2: Convert to fraction form
852,022,627.94/1,278,819,571.44 = 432,138,688.62/x - Step 3: Cross multiply
852,022,627.94x = 1,278,819,571.44 × 432,138,688.62 - Step 4: Simplify right side
852,022,627.94x = 552,627,412,583,672,064 - Step 5: Solve for x
x = 552,627,412,583,672,064/852,022,627.94 - Step 6: Final answer
x = 648,606,497.60
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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.