Finding the Fourth Proportional to 137,054,107.80, 205,581,161.70 and 128,551,051.80
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Solution
The fourth proportional to 137,054,107.80, 205,581,161.70 and 128,551,051.80 is: 192,826,577.70
Step by Step Solution
- Step 1: Write the proportion equation
137,054,107.80 : 205,581,161.70 = 128,551,051.80 : x - Step 2: Convert to fraction form
137,054,107.80/205,581,161.70 = 128,551,051.80/x - Step 3: Cross multiply
137,054,107.80x = 205,581,161.70 × 128,551,051.80 - Step 4: Simplify right side
137,054,107.80x = 26,427,674,566,800,872 - Step 5: Solve for x
x = 26,427,674,566,800,872/137,054,107.80 - Step 6: Final answer
x = 192,826,577.70
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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.