Finding the Fourth Proportional to 303,218,909.18, 418,442,094.36 and 163,989,670.80
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Solution
The fourth proportional to 303,218,909.18, 418,442,094.36 and 163,989,670.80 is: 226,305,745.54
Step by Step Solution
- Step 1: Write the proportion equation
303,218,909.18 : 418,442,094.36 = 163,989,670.80 : x - Step 2: Convert to fraction form
303,218,909.18/418,442,094.36 = 163,989,670.80/x - Step 3: Cross multiply
303,218,909.18x = 418,442,094.36 × 163,989,670.80 - Step 4: Simplify right side
303,218,909.18x = 68,620,181,302,958,944 - Step 5: Solve for x
x = 68,620,181,302,958,944/303,218,909.18 - Step 6: Final answer
x = 226,305,745.54
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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.