Finding the Fourth Proportional to 225,628,517.83, 311,252,756.74 and 147,357,887.35
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Solution
The fourth proportional to 225,628,517.83, 311,252,756.74 and 147,357,887.35 is: 203,279,040.73
Step by Step Solution
- Step 1: Write the proportion equation
225,628,517.83 : 311,252,756.74 = 147,357,887.35 : x - Step 2: Convert to fraction form
225,628,517.83/311,252,756.74 = 147,357,887.35/x - Step 3: Cross multiply
225,628,517.83x = 311,252,756.74 × 147,357,887.35 - Step 4: Simplify right side
225,628,517.83x = 45,865,548,665,069,872 - Step 5: Solve for x
x = 45,865,548,665,069,872/225,628,517.83 - Step 6: Final answer
x = 203,279,040.73
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.