Finding the Fourth Proportional to 135,777,184.95, 203,797,309.08 and 128,403,441.09
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Solution
The fourth proportional to 135,777,184.95, 203,797,309.08 and 128,403,441.09 is: 192,729,550.11
Step by Step Solution
- Step 1: Write the proportion equation
135,777,184.95 : 203,797,309.08 = 128,403,441.09 : x - Step 2: Convert to fraction form
135,777,184.95/203,797,309.08 = 128,403,441.09/x - Step 3: Cross multiply
135,777,184.95x = 203,797,309.08 × 128,403,441.09 - Step 4: Simplify right side
135,777,184.95x = 26,168,275,770,754,304 - Step 5: Solve for x
x = 26,168,275,770,754,304/135,777,184.95 - Step 6: Final answer
x = 192,729,550.11
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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.