Finding the Fourth Proportional to 8,220,507.67, 12,330,812.49 and 2,155,184.92
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Solution
The fourth proportional to 8,220,507.67, 12,330,812.49 and 2,155,184.92 is: 3,232,790.75
Step by Step Solution
- Step 1: Write the proportion equation
8,220,507.67 : 12,330,812.49 = 2,155,184.92 : x - Step 2: Convert to fraction form
8,220,507.67/12,330,812.49 = 2,155,184.92/x - Step 3: Cross multiply
8,220,507.67x = 12,330,812.49 × 2,155,184.92 - Step 4: Simplify right side
8,220,507.67x = 26,575,181,129,795.65 - Step 5: Solve for x
x = 26,575,181,129,795.65/8,220,507.67 - Step 6: Final answer
x = 3,232,790.75
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1.5x scale
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.