Finding the Fourth Proportional to 7,643,874.24, 11,466,213.12 and 1,964,136.96
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Solution
The fourth proportional to 7,643,874.24, 11,466,213.12 and 1,964,136.96 is: 2,946,308.67
Step by Step Solution
- Step 1: Write the proportion equation
7,643,874.24 : 11,466,213.12 = 1,964,136.96 : x - Step 2: Convert to fraction form
7,643,874.24/11,466,213.12 = 1,964,136.96/x - Step 3: Cross multiply
7,643,874.24x = 11,466,213.12 × 1,964,136.96 - Step 4: Simplify right side
7,643,874.24x = 22,521,212,980,228.91 - Step 5: Solve for x
x = 22,521,212,980,228.91/7,643,874.24 - Step 6: Final answer
x = 2,946,308.67
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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.