Finding the Fourth Proportional to 9,027,834.57, 12,458,409.66 and 5,160,438.99
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Solution
The fourth proportional to 9,027,834.57, 12,458,409.66 and 5,160,438.99 is: 7,121,404.64
Step by Step Solution
- Step 1: Write the proportion equation
9,027,834.57 : 12,458,409.66 = 5,160,438.99 : x - Step 2: Convert to fraction form
9,027,834.57/12,458,409.66 = 5,160,438.99/x - Step 3: Cross multiply
9,027,834.57x = 12,458,409.66 × 5,160,438.99 - Step 4: Simplify right side
9,027,834.57x = 64,290,862,962,856.65 - Step 5: Solve for x
x = 64,290,862,962,856.65/9,027,834.57 - Step 6: Final answer
x = 7,121,404.64
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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.