Finding the Fourth Proportional to 7,628,573.20, 11,461,522.20 and 5,739,005.20
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Solution
The fourth proportional to 7,628,573.20, 11,461,522.20 and 5,739,005.20 is: 8,622,547.60
Step by Step Solution
- Step 1: Write the proportion equation
7,628,573.20 : 11,461,522.20 = 5,739,005.20 : x - Step 2: Convert to fraction form
7,628,573.20/11,461,522.20 = 5,739,005.20/x - Step 3: Cross multiply
7,628,573.20x = 11,461,522.20 × 5,739,005.20 - Step 4: Simplify right side
7,628,573.20x = 65,777,735,505,715.44 - Step 5: Solve for x
x = 65,777,735,505,715.44/7,628,573.20 - Step 6: Final answer
x = 8,622,547.60
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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.