Finding the Fourth Proportional to 5,430,931.56, 8,149,761.36 and 3,157,525.80
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Solution
The fourth proportional to 5,430,931.56, 8,149,761.36 and 3,157,525.80 is: 4,738,244.53
Step by Step Solution
- Step 1: Write the proportion equation
5,430,931.56 : 8,149,761.36 = 3,157,525.80 : x - Step 2: Convert to fraction form
5,430,931.56/8,149,761.36 = 3,157,525.80/x - Step 3: Cross multiply
5,430,931.56x = 8,149,761.36 × 3,157,525.80 - Step 4: Simplify right side
5,430,931.56x = 25,733,081,758,043.09 - Step 5: Solve for x
x = 25,733,081,758,043.09/5,430,931.56 - Step 6: Final answer
x = 4,738,244.53
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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.