Finding the Fourth Proportional to 703,163,912.66, 1,054,643,195.94 and 205,040,570.75
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Solution
The fourth proportional to 703,163,912.66, 1,054,643,195.94 and 205,040,570.75 is: 307,530,916.96
Step by Step Solution
- Step 1: Write the proportion equation
703,163,912.66 : 1,054,643,195.94 = 205,040,570.75 : x - Step 2: Convert to fraction form
703,163,912.66/1,054,643,195.94 = 205,040,570.75/x - Step 3: Cross multiply
703,163,912.66x = 1,054,643,195.94 × 205,040,570.75 - Step 4: Simplify right side
703,163,912.66x = 216,244,642,829,812,960 - Step 5: Solve for x
x = 216,244,642,829,812,960/703,163,912.66 - Step 6: Final answer
x = 307,530,916.96
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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.