Finding the Fourth Proportional to 7,420,584.21, 10,241,487.30 and 4,157,619.50
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Solution
The fourth proportional to 7,420,584.21, 10,241,487.30 and 4,157,619.50 is: 5,738,120.62
Step by Step Solution
- Step 1: Write the proportion equation
7,420,584.21 : 10,241,487.30 = 4,157,619.50 : x - Step 2: Convert to fraction form
7,420,584.21/10,241,487.30 = 4,157,619.50/x - Step 3: Cross multiply
7,420,584.21x = 10,241,487.30 × 4,157,619.50 - Step 4: Simplify right side
7,420,584.21x = 42,580,207,256,274.91 - Step 5: Solve for x
x = 42,580,207,256,274.91/7,420,584.21 - Step 6: Final answer
x = 5,738,120.62
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1.5x scale
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.