Finding the Fourth Proportional to 5,225,872.13, 7,838,805.31 and 1,631,947.08
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Solution
The fourth proportional to 5,225,872.13, 7,838,805.31 and 1,631,947.08 is: 2,447,919.72
Step by Step Solution
- Step 1: Write the proportion equation
5,225,872.13 : 7,838,805.31 = 1,631,947.08 : x - Step 2: Convert to fraction form
5,225,872.13/7,838,805.31 = 1,631,947.08/x - Step 3: Cross multiply
5,225,872.13x = 7,838,805.31 × 1,631,947.08 - Step 4: Simplify right side
5,225,872.13x = 12,792,515,436,342.99 - Step 5: Solve for x
x = 12,792,515,436,342.99/5,225,872.13 - Step 6: Final answer
x = 2,447,919.72
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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.