Finding the Fourth Proportional to 10,385,957.99, 14,331,871.15 and 5,739,687.43
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Solution
The fourth proportional to 10,385,957.99, 14,331,871.15 and 5,739,687.43 is: 7,920,353.68
Step by Step Solution
- Step 1: Write the proportion equation
10,385,957.99 : 14,331,871.15 = 5,739,687.43 : x - Step 2: Convert to fraction form
10,385,957.99/14,331,871.15 = 5,739,687.43/x - Step 3: Cross multiply
10,385,957.99x = 14,331,871.15 × 5,739,687.43 - Step 4: Simplify right side
10,385,957.99x = 82,260,460,637,855.75 - Step 5: Solve for x
x = 82,260,460,637,855.75/10,385,957.99 - Step 6: Final answer
x = 7,920,353.68
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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.