Finding the Fourth Proportional to 7,643,891.24, 11,466,238.62 and 1,964,153.96
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Solution
The fourth proportional to 7,643,891.24, 11,466,238.62 and 1,964,153.96 is: 2,946,334.18
Step by Step Solution
- Step 1: Write the proportion equation
7,643,891.24 : 11,466,238.62 = 1,964,153.96 : x - Step 2: Convert to fraction form
7,643,891.24/11,466,238.62 = 1,964,153.96/x - Step 3: Cross multiply
7,643,891.24x = 11,466,238.62 × 1,964,153.96 - Step 4: Simplify right side
7,643,891.24x = 22,521,457,991,777.93 - Step 5: Solve for x
x = 22,521,457,991,777.93/7,643,891.24 - Step 6: Final answer
x = 2,946,334.18
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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.