Finding the Fourth Proportional to 305,041,615.56, 421,160,131.98 and 234,351,326.28
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Solution
The fourth proportional to 305,041,615.56, 421,160,131.98 and 234,351,326.28 is: 323,560,558.53
Step by Step Solution
- Step 1: Write the proportion equation
305,041,615.56 : 421,160,131.98 = 234,351,326.28 : x - Step 2: Convert to fraction form
305,041,615.56/421,160,131.98 = 234,351,326.28/x - Step 3: Cross multiply
305,041,615.56x = 421,160,131.98 × 234,351,326.28 - Step 4: Simplify right side
305,041,615.56x = 98,699,435,505,772,848 - Step 5: Solve for x
x = 98,699,435,505,772,848/305,041,615.56 - Step 6: Final answer
x = 323,560,558.53
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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.