Finding the Fourth Proportional to 7,447,231.20, 11,170,846.80 and 4,896,314.40
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Solution
The fourth proportional to 7,447,231.20, 11,170,846.80 and 4,896,314.40 is: 7,344,471.60
Step by Step Solution
- Step 1: Write the proportion equation
7,447,231.20 : 11,170,846.80 = 4,896,314.40 : x - Step 2: Convert to fraction form
7,447,231.20/11,170,846.80 = 4,896,314.40/x - Step 3: Cross multiply
7,447,231.20x = 11,170,846.80 × 4,896,314.40 - Step 4: Simplify right side
7,447,231.20x = 54,695,978,047,033.93 - Step 5: Solve for x
x = 54,695,978,047,033.93/7,447,231.20 - Step 6: Final answer
x = 7,344,471.60
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Similar ratio
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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.